Frame lifting cross beam and vehicle chassis

Abstract

The utility model relates to the technical field of vehicles, in particular to a vehicle frame lifting cross beam and a vehicle chassis, the vehicle frame lifting cross beam comprises a lifting cross beam, two lifting supports and two shaft heads, the two lifting supports are fixedly arranged on two longitudinal beams in a one-to-one correspondence mode, installation holes are formed in the lifting supports, the installation holes of the two lifting supports are coaxially arranged, and the two shaft heads are fixedly arranged on the two longitudinal beams in a one-to-one correspondence mode. The lifting support is a forged part; the lifting cross beam is arranged between the two lifting supports, the two ends of the lifting cross beam are inserted into the mounting holes of the two lifting supports respectively, and the lifting cross beam is fixedly connected with the lifting supports respectively; the two shaft heads are inserted from the ends, away from the lifting cross beam, of the two mounting holes in a one-to-one correspondence mode and fixedly connected with the corresponding lifting supports. The vehicle frame lifting cross beam has the advantages of high strength, good stability and good reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle frame lifting crossbeam and a vehicle chassis. Background Art

[0002] Engineering vehicles are specialized transportation equipment for open-pit mining. Low cost, large load capacity, and high work efficiency have always been the goals pursued by customers. Among them, higher requirements are put forward for the load capacity and energy efficiency of engineering vehicles.

[0003] The lifting crossbeam of the vehicle frame is the main force-bearing structure for the cargo box to flip, and is generally arranged in the middle or on both sides of the frame. Due to the harsh working environment and complex transportation conditions in the mining area, as well as the heavy load, the lifting structure requires higher strength, and is prone to cracking and breaking. The reliability of the lifting structure also directly affects the safety of the driver during the unloading process. The lifting supports of the existing structure are all hollow box-type structures, mainly in the form of plate welding and casting. The structure has weak rigidity and is easy to deform. There are cracking and welding phenomena in the market.

[0004] In summary, the urgent need for a frame lifting beam with high strength, good stability and good reliability is an urgent need for the development of the market and engineering vehicles. Utility Model Content

[0005] The purpose of the utility model is to provide a frame lifting beam and a vehicle chassis to solve the problem that the existing frame lifting beams in the related technology are all hollow box-type structures, mainly in the form of plate welding and casting, with weak structural rigidity, easy deformation, and cracking and welding problems in market use.

[0006] In one aspect, the utility model provides a vehicle frame lifting beam, the vehicle frame lifting beam comprising:

[0007] Two lifting supports, the two lifting supports are fixedly arranged on the two longitudinal beams in a one-to-one correspondence, the lifting supports are provided with mounting holes, the mounting holes of the two lifting supports are coaxially arranged, and the lifting supports are forged parts;

[0008] A lifting beam, wherein the lifting beam is arranged between the two lifting supports, and the two ends of the lifting beam are respectively inserted into the mounting holes of the two lifting supports, and the lifting beam is respectively fixedly connected to the lifting supports;

[0009] Two shaft heads are inserted into the two mounting holes one by one and away from one end of the lifting beam, and the shaft heads are fixedly connected to the corresponding lifting supports.

[0010] As a preferred technical solution for the vehicle frame lifting crossbeam, the shaft head is a forged part.

[0011] As a preferred technical solution for the vehicle frame lifting crossbeam, the interior of the shaft head is conically hollow along its axial direction, and the exterior of the shaft head is conically transitioned along its axial direction.

[0012] As a preferred technical solution for the vehicle frame lifting crossbeam, a stop ring is provided on the outer peripheral wall of the shaft head around its axial direction, and the stop ring abuts against the corresponding lifting support.

[0013] As a preferred technical solution for the vehicle frame lifting crossbeam, the shaft head and the lifting support are interference fit.

[0014] As a preferred technical solution for the vehicle frame lifting crossbeam, the lifting crossbeam forms a single groove structure with the corresponding lifting support at a position close to the lifting support.

[0015] As a preferred technical solution for the vehicle frame lifting crossbeam, it also includes an intermediate ear seat, which is sleeved on the lifting crossbeam and fixedly connected to the lifting crossbeam.

[0016] As a preferred technical solution for the vehicle frame lifting beam, the intermediate ear seat is provided with first reinforcing ribs on both sides of the axial direction of the lifting beam, and the first reinforcing ribs are respectively fixedly connected to the intermediate ear seat and the lifting beam.

[0017] As an optimal technical solution for the frame lifting crossbeam, the lifting support includes a connecting plate, a support plate, a support column and a plurality of second reinforcing ribs, one end of the support plate is fixedly connected to the connecting plate, and the other end is fixedly connected to the support column, a plurality of second reinforcing ribs are arranged on both sides of the support plate, the second reinforcing ribs are fixedly connected to the connecting plate, the support plate and the support column at the same time, the mounting hole is located at the support column, and the connecting plate is used to be fixedly connected to the corresponding longitudinal beam.

[0018] On the other hand, the utility model provides a vehicle chassis, including two longitudinal beams arranged at intervals and a frame lifting cross beam in any of the above schemes, and the two lifting supports are fixedly arranged on the two longitudinal beams in a one-to-one correspondence.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a vehicle frame lifting beam and a vehicle chassis, the vehicle frame lifting beam comprises a lifting beam, two lifting supports and two shaft heads, the two lifting supports are fixedly arranged on two longitudinal beams in a one-to-one correspondence, the lifting supports are provided with mounting holes, the mounting holes of the two lifting supports are arranged coaxially, and the lifting supports are forged parts; the lifting beam is arranged between the two lifting supports, the two ends of the lifting beam are respectively inserted into the mounting holes of the two lifting supports, and the lifting beam is respectively fixedly connected to the lifting supports; the two shaft heads are inserted from one end of the two mounting holes away from the lifting beam in a one-to-one correspondence, and the shaft heads are fixedly connected to the corresponding lifting supports. The lifting supports of the vehicle frame lifting beam are forged parts made by forging technology, so their strength is stronger than the frame strength and less prone to deformation. Since the axle head and the lifting beam are independently arranged and inserted from both sides of the mounting hole respectively, the lifting support fixes the axle head and the lifting beam respectively, so their respective forces will not affect each other. Therefore, the frame lifting beam has the advantages of high strength, good stability and good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the assembly of the lifting cross beam and longitudinal beam of the frame in the embodiment of the utility model;

[0022] Figure 2 The structure diagram of the lifting beam of the frame in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 3 The structure diagram of the lifting beam of the frame in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 4 It is a cross-sectional view of a vehicle frame lifting beam in an embodiment of the utility model;

[0025] Figure 5 It is a schematic structural diagram of a lifting support in an embodiment of the utility model.

[0026] In the figure:

[0027] 100, longitudinal beam;

[0028] 1. Lifting support; 11. Connecting plate; 12. Support plate; 13. Support column; 131. Mounting hole; 14. Second reinforcing rib;

[0029] 2. Lifting beam; 21. Single groove structure; 3. Axle head; 31. Stop ring; 4. Middle ear seat; 5. First reinforcement rib. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, 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 are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] like Figure 1 to Figure 5As shown, this embodiment provides a vehicle frame lifting beam, which includes a lifting beam 2, two lifting supports 1 and two shaft heads 3. The two lifting supports 1 are fixedly arranged on two longitudinal beams 100 in a one-to-one correspondence. The lifting supports 1 are provided with mounting holes 131. The mounting holes 131 of the two lifting supports 1 are arranged coaxially, and the lifting supports 1 are forged parts. The lifting beam 2 is arranged between the two lifting supports 1. The two ends of the lifting beam 2 are respectively inserted into the mounting holes 131 of the two lifting supports 1, and the lifting beam 2 is respectively fixedly connected to the lifting supports 1. The two shaft heads 3 are inserted from one end of the two mounting holes 131 away from the lifting beam 2 in a one-to-one correspondence, and the shaft heads 3 are fixedly connected to the corresponding lifting supports 1. The lifting supports 1 of the vehicle frame lifting beam are forged parts made by forging technology, so their strength is stronger than the frame strength and less prone to deformation. Since the shaft head 3 and the lifting beam 2 are independently arranged and inserted from both sides of the mounting hole 131 respectively, the lifting support 1 fixes the shaft head 3 and the lifting beam 2 respectively, so their respective forces will not affect each other. Therefore, the frame lifting beam 2 has the advantages of high strength, good stability and good reliability.

[0035] Specifically, the shaft head 3 is used to connect the lifting cylinder seat ear. The two shaft heads 3 are interchangeable parts, which reduces the types of materials and reduces the manufacturing cost.

[0036] Optionally, the shaft head 3 is a forged part. In this embodiment, when the lifting cylinder lifts the bucket, the shaft head 3 bears the gravity from the bucket. Therefore, the shaft head 3 is set as a forged part, which can improve the strength of the shaft head 3 and improve the stability of the lifting beam of the frame.

[0037] Optionally, the shaft head 3 is conically hollow inside along its axial direction, and the shaft head 3 is conically transitioned outside along its axial direction. In this embodiment, the above arrangement ensures the wall thickness of the shaft head 3 while making the structure of the shaft head 3 transition smoothly and reducing stress concentration.

[0038] Optionally, a stop ring 31 is provided around the outer peripheral wall of the shaft head 3 in the axial direction thereof, and the stop ring 31 abuts against the corresponding lifting support 1. In this embodiment, the stop ring 31 limits the distance of the shaft head 3 extending into the mounting hole 131, thereby limiting the limit position of the lifting support 1 and the shaft head 3, and a single groove structure 21 is formed between the stop ring 31 and the lifting support 1. The single groove position is welded by a welding process, thereby facilitating the connection strength between the shaft head 3 and the lifting support 1.

[0039] Optionally, the shaft head 3 is interference fit with the lifting support 1. In this embodiment, this arrangement can improve the stability of the shaft head 3 and prevent it from shaking.

[0040] Optionally, the lifting beam 2 forms a single groove structure 21 with the corresponding lifting support 1 at a position close to the lifting support 1. In this embodiment, the single groove structure 21 is welded by a welding process, which is beneficial to improve the connection strength between the lifting beam 2 and the lifting support 1. The lifting beam 2 is manufactured by steel pipe machining to reduce welds, and the lifting beam 2 is symmetrically processed, which is convenient for installation and reduces costs.

[0041] Optionally, the lifting beam of the vehicle frame further includes an intermediate ear seat 4, which is sleeved on the lifting beam 2 and fixedly connected to the lifting beam 2. In this embodiment, two intermediate ear seats 4 are provided, and the two intermediate ear seats 4 are sleeved on the lifting beam 2 at intervals. The intermediate ear seats 4 and the lifting beam 2 are welded together in a circle to ensure uniform stress distribution and avoid damage caused by stress concentration. The opposite side of the two intermediate ear seats 4 adopts non-groove surfacing, and the opposite side of the two intermediate ear seats 4 adopts single-groove surfacing to increase the welding width between the intermediate ear seats 4 and the lifting beam 2, improve the stability of the intermediate ear seats 4, and avoid premature cracking of the weld.

[0042] Optionally, first reinforcing ribs 5 are respectively provided on both sides of the middle ear seat 4 along the axial direction of the lifting beam 2, and the first reinforcing ribs 5 are respectively fixed to the middle ear seat 4 and the lifting beam 2. In this embodiment, the function of the first reinforcing ribs 5 is to improve the connection strength between the middle ear seat 4 and the lifting beam 2, and to prevent the middle ear seat 4 from deforming. Specifically, a plurality of first reinforcing ribs 5 are provided, and the plurality of first reinforcing ribs 5 are respectively provided on both sides of the middle ear seat 4 along the lifting beam 2, and are arranged at intervals around the circumference of the lifting beam 2.

[0043] Optionally, the lifting support 1 includes a connecting plate 11, a supporting plate 12, a supporting column 13 and a plurality of second reinforcing ribs 14, one end of the supporting plate 12 is fixedly connected to the connecting plate 11, and the other end is fixedly connected to the supporting column 13, a plurality of second reinforcing ribs 14 are arranged on both sides of the supporting plate 12, the second reinforcing ribs 14 are fixedly connected to the connecting plate 11, the supporting plate 12 and the supporting column 13 at the same time, the mounting hole 131 is located at the supporting column 13, and the connecting plate 11 is used to be fixedly connected to the corresponding longitudinal beam 100. In this embodiment, the second reinforcing ribs 14 can prevent deformation between the connecting plate 11 and the supporting plate 12, and between the supporting plate 12 and the supporting column 13, thereby improving the overall strength of the lifting support 1.

[0044] The present embodiment also provides a vehicle chassis, comprising two longitudinal beams 100 arranged at intervals and the frame lifting cross beam in the above solution, and two lifting supports 1 are fixedly arranged on the two longitudinal beams 100 in a one-to-one correspondence.

[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. The frame lifting beam is characterized by: include: Two lifting supports (1), the two lifting supports (1) being fixedly mounted on the two longitudinal beams (100) in a one-to-one correspondence, the lifting supports (1) being provided with mounting holes (131), the mounting holes (131) of the two lifting supports (1) being coaxially arranged, and the lifting supports (1) being forged parts; A lifting beam (2), the lifting beam (2) being arranged between the two lifting supports (1), the two ends of the lifting beam (2) being respectively inserted into the mounting holes (131) of the two lifting supports (1), and the lifting beam (2) being respectively fixedly connected to the lifting supports (1); Two shaft heads (3), the two shaft heads (3) are inserted into the two mounting holes (131) in a one-to-one correspondence at one end away from the lifting beam (2), and the shaft heads (3) are fixedly connected to the corresponding lifting supports (1).

2. The frame lifting beam according to claim 1, characterized in that: The shaft head (3) is a forged part.

3. The frame lifting beam according to claim 2, characterized in that: The interior of the shaft head (3) is conically hollow along its axial direction, and the exterior of the shaft head (3) is conically transitioned along its axial direction.

4. The frame lifting beam according to claim 1, characterized in that: A stop ring (31) is provided on the outer peripheral wall of the shaft head (3) around its axial direction, and the stop ring (31) abuts against the corresponding lifting support (1).

5. The frame lifting beam according to claim 1, characterized in that: The shaft head (3) and the lifting support (1) are interference fit.

6. The frame lifting beam according to claim 1, characterized in that: The position of the lifting crossbeam (2) close to the lifting support (1) forms a single groove structure (21) with the corresponding lifting support (1).

7. The frame lifting beam according to claim 1, characterized in that: It also comprises an intermediate ear seat (4), wherein the intermediate ear seat (4) is sleeved on the lifting beam (2) and fixedly connected to the lifting beam (2).

8. The frame lifting beam according to claim 7, characterized in that: The intermediate ear seat (4) is provided with first reinforcing ribs (5) on both sides of the axial direction of the lifting beam (2), and the first reinforcing ribs (5) are respectively fixedly connected to the intermediate ear seat (4) and the lifting beam (2).

9. The frame lifting beam according to claim 1, characterized in that: The lifting support (1) comprises a connecting plate (11), a supporting plate (12), a supporting column (13) and a plurality of second reinforcing ribs (14); one end of the supporting plate (12) is fixedly connected to the connecting plate (11), and the other end is fixedly connected to the supporting column (13); a plurality of second reinforcing ribs (14) are arranged on both sides of the supporting plate (12); the second reinforcing ribs (14) are fixedly connected to the connecting plate (11), the supporting plate (12) and the supporting column (13) at the same time; the mounting hole (131) is located on the supporting column (13); the connecting plate (11) is used to be fixedly connected to the corresponding longitudinal beam (100).

10. A vehicle chassis, characterized in that: It comprises two longitudinal beams (100) arranged at intervals and a frame lifting cross beam as claimed in any one of claims 1 to 9, wherein the two lifting supports (1) are fixedly arranged on the two longitudinal beams (100) in a one-to-one correspondence.

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