Frame structure and mining dump truck

Abstract

The utility model discloses a frame structure and a mining dump truck, including a frame welding assembly, a lifting support and an upper gantry beam; the frame welding assembly includes a frame longitudinal beam and a lower ring beam; the lifting support is assembled on the top surface of the frame welding assembly located at the front section of the frame; the upper gantry beam is assembled on the top surface of the frame welding assembly located at the front section of the frame and is located behind the lifting support; wherein the lifting support and the upper gantry beam form two upper ring beams of the frame structure, the lower ring beam is fixed on the bottom surface of the frame longitudinal beam and is located below the lifting support and the upper gantry beam, and the lower ring beam and the two upper ring beams form a ring beam structure to improve the rigidity of the frame structure. The utility model is designed with a unique connecting support and ring beam structure at the front axle, which ensures that the frame has sufficient torsional strength and rigidity on the basis of avoiding the front axle. The frame body is welded using components, and the structural processability is good.

Description

Technical Field

[0001] The utility model relates to a vehicle frame structure and belongs to the technical field of mining dump trucks. Background Art

[0002] Traditionally, a welded frame that uses McPherson independent suspension has a large space at the front axle to design a welded ring beam. When an integral front axle design is adopted, there is not enough space to accommodate the ring beam structure. Summary of the invention

[0003] The utility model provides a frame structure adapted to an integral front axle, which is designed with a unique connecting support and ring beam structure at the front axle, so as to ensure that the frame has sufficient torsional strength and rigidity while avoiding the front axle. The frame body is welded by components, and the structure has good processability.

[0004] The utility model is implemented according to the following technical solutions:

[0005] In a first aspect, the utility model provides a frame structure, comprising:

[0006] The frame welding assembly includes the frame longitudinal beam and the lower ring beam;

[0007] A lifting bracket is assembled on the top surface of the frame welding assembly located at the front section of the frame;

[0008] An upper gantry beam, mounted on the top surface of the frame welding assembly located at the front section of the frame and located behind the lifting support;

[0009] Among them, the lifting support and the upper gantry beam form two upper ring beams of the frame structure, the lower ring beam is fixed to the bottom surface of the frame longitudinal beam and is located below the lifting support and the upper gantry beam, and the lower ring beam and the two upper ring beams form a ring beam structure to improve the rigidity of the frame structure.

[0010] In some embodiments, the lower ring beam comprises:

[0011] Two side panel assemblies facing each other, one of which is connected to the left longitudinal beam of the frame rail, and the other side panel assembly is connected to the right longitudinal beam of the frame rail;

[0012] At least one connecting pipe passes through the two side plate assemblies and is fixed to the two side plate assemblies.

[0013] In some embodiments, the side panel assembly comprises:

[0014] An outer plate and an inner plate facing each other, wherein the outer plate is welded to the outer side surface of the longitudinal beam, and the inner plate is welded to the inner side surface of the longitudinal beam;

[0015] At least one bent plate is used to block the gap between the outer plate and the inner plate.

[0016] In some embodiments, the outer panel and the inner panel are overall inverted triangle shape, and the connecting tube is located at the bottom tip of the side panel assembly; there are two bending plates, and both bending plates start from the outer peripheral surface of the bottom connecting tube and extend obliquely upward along the edges of both sides of the outer panel and the inner panel to the top of the outer panel and the inner panel.

[0017] In some embodiments, the frame longitudinal beam is composed of a left longitudinal beam and a right longitudinal beam of a symmetrical structure, and the main bodies of the left longitudinal beam and the right longitudinal beam are long strip welded box-shaped.

[0018] In some embodiments, the frame welding assembly further includes:

[0019] The left suspension support of the front axle is welded to the inner and outer side surfaces and the top surface of the left longitudinal beam;

[0020] A right suspension support of the front axle, welded to the inner and outer side surfaces and top surface of the right longitudinal beam;

[0021] A left lifting fixing seat, welded to the outer side surface and top surface of the left longitudinal beam;

[0022] A right lifting fixing seat, welded to the outer side surface and top surface of the right longitudinal beam;

[0023] A front bumper, welded to the front end faces and outer side faces of the left longitudinal beam and the right longitudinal beam;

[0024] Wherein, the upper gantry beam is assembled with the left suspension support of the front axle and the right suspension support of the front axle; the lifting support is assembled with the left lifting fixing seat and the right lifting fixing seat.

[0025] In some embodiments, the left longitudinal beam and the right longitudinal beam are fixed with plates on the inner and outer sides located at the front section of the frame; the plate on the left longitudinal beam is welded to the left suspension support and the lower ring beam of the front axle; the plate on the right longitudinal beam is welded to the right suspension support and the lower ring beam of the front axle.

[0026] In some embodiments, the front lower cover plates of the left and right longitudinal beams are provided with protrusions that protrude outward and extend rearward, so as to increase the connection surface with the front bumper; a bent plate is welded between the outer side surface of the left longitudinal beam and the top surface of the protrusion thereon, so as to form a box-type structure for improving the local stiffness of the left longitudinal beam; a bent plate is welded between the outer side surface of the right longitudinal beam and the top surface of the protrusion thereon, so as to form a box-type structure for improving the local stiffness of the right longitudinal beam.

[0027] In some embodiments, the inner side surfaces of the left longitudinal beam and the right longitudinal beam are provided with arc transition structures at the connection positions with the front bumper.

[0028] In a second aspect, the utility model provides a mining dump truck, comprising the above-mentioned frame structure.

[0029] Beneficial effects of the utility model:

[0030] 1. The frame structure of the utility model is designed with an inverted triangle lower ring beam on the basis of the structure that accommodates the integral front axle. The upper part of the lower ring beam is connected from the front axle position of the longitudinal beam to the lifting support position, forming a ring beam structure with the upper gantry beam and the lifting support, thereby improving the structural rigidity of the frame at the front axle position.

[0031] 2. A reinforcing plate is designed on the longitudinal beam in the frame structure of the utility model, and the plate connects the lower ring beam and the front axle suspension seat to improve the structural connection strength and the local strength of the longitudinal beam.

[0032] 3. The front bumper of the utility model is designed as a three-sided surrounding structure, which is connected to the front surface and the outer side surface of the longitudinal beam to improve the torsional strength of the frame.

[0033] 4. The welding structures designed in the frame structure of the utility model can be welded into components and then assembled into a frame. The structural welding can be completed in one assembly, saving manufacturing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0035] In the attached picture:

[0036] Figure 1 It is a schematic diagram of the structure of the connection between the frame welding assembly and other assembly parts;

[0037] Figure 2 It is a structural schematic diagram of the frame welding assembly;

[0038] Figure 3 This is an exploded schematic diagram of the frame welding assembly;

[0039] Figure 4 It is a schematic diagram of the outer structure of the front part of the longitudinal beam;

[0040] Figure 5 It is a schematic diagram of the inner structure of the front part of the longitudinal beam;

[0041] Figure 6 It is the structural schematic diagram of the lower ring beam;

[0042] Figure 7 This is the structural explosion diagram of the lower ring beam.

[0043] Figures and symbols: frame welding assembly 1, lifting support 2, upper gantry beam 3;

[0044] Left longitudinal beam 11, right longitudinal beam 12, lower ring beam 13, front bumper 14, front axle left suspension seat 15, front axle right suspension seat 16, left lifting fixing seat 17, right lifting fixing seat 18;

[0045] The plate 111, the bent plate 112, the protruding portion 11-1, and the arc transition structure 11-2;

[0046] The outer plate 131 , the inner plate 132 , the bent plate 133 , and the lower connecting pipe 134 .

[0047] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0049] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0050] 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figure 1As shown, a frame structure includes a frame welding assembly 1, a lifting support 2, and an upper gantry beam 3; the lifting support 2 is mounted on the top surface of the frame welding assembly 1 located at the front section of the frame; the upper gantry beam 3 is mounted on the top surface of the frame welding assembly 1 located at the front section of the frame and is located behind the lifting support 2; wherein the lifting support 2 and the upper gantry beam 3 form two upper ring beams of the frame structure, providing upper rigidity support for the frame; the above structure makes a concession for the front axle, the frame welding assembly 1 is the main force-bearing part of the whole vehicle, and the integral front axle occupies the lower half of the frame at the front axle installation position, so that the frame cannot form a complete ring beam structure at the force point of the front axle suspension seat, and the lower half of the frame structure will be severely tensilely deformed, and the structure is prone to cracking. Therefore, the above structure has been further improved.

[0052] Continue to refer to Figure 1 As shown, the frame welding assembly 1 includes a frame longitudinal beam and a lower ring beam 13; the lower ring beam 13 is fixed to the bottom surface of the frame longitudinal beam and is located below the lifting support 2 and the upper gantry beam 3, and the lower ring beam 13 and the two upper ring beams form a ring beam structure to improve the rigidity of the frame structure.

[0053] The above-mentioned lower ring beam is further explained below.

[0054] like Figure 6 As shown, the lower ring beam 13 includes two side panel assemblies opposite to each other and at least one connecting tube 133, wherein one side panel assembly is connected to the left longitudinal beam 11 of the frame longitudinal beam, and the other side panel assembly is connected to the right longitudinal beam 12 of the frame longitudinal beam; at least one connecting tube 133 passes through the two side panel assemblies and is fixed together with the two side panel assemblies.

[0055] Further solutions: Figure 7 As shown, the side panel assembly includes an outer panel 131 and an inner panel 132 opposite to each other and at least one bent plate 134, the outer panel 131 is welded to the outer side surface of the longitudinal beam, and the inner panel 132 is welded to the inner side surface of the longitudinal beam; at least one bent plate 134 is used to seal the gap between the outer panel 131 and the inner panel 132.

[0056] Further solutions: Figure 6 , Figure 7As shown, the outer side plate 131 and the inner side plate 132 are in an inverted triangle shape as a whole, which reduces the weight of the structure while ensuring the connection strength with the longitudinal beam. The connecting pipe 133 is located at the bottom tip of the side plate assembly; there are two bent plates 134, one of which starts from the bottom connecting pipe 133 and extends obliquely upward along the edge of one side of the outer side plate 131 and the inner side plate 132 to the top of the outer side plate 131 and the inner side plate 132; the other bent plate 134 starts from the bottom connecting pipe 133 and extends obliquely upward along the edge of the other side of the outer side plate 131 and the inner side plate 132 to the top of the outer side plate 131 and the inner side plate 132.

[0057] The above-mentioned frame longitudinal beam is further described below.

[0058] like Figure 1 , Figure 2 As shown, the frame longitudinal beam is composed of a left longitudinal beam 11 and a right longitudinal beam 12 of a symmetrical structure, and the main bodies of the left longitudinal beam 11 and the right longitudinal beam 12 are long strip welded box-shaped.

[0059] The above-mentioned frame welding assembly is further described below.

[0060] like Figure 1 , Figure 2 , Figure 3 As shown, the frame welding assembly 1 also includes a front bumper 14 , a front axle left suspension seat 15 , a front axle right suspension seat 16 , a left lifting fixing seat 17 , and a right lifting fixing seat 18 .

[0061] The front axle of the frame welding assembly uses the left and right suspension supports to connect the frame longitudinal beams and the upper gantry beam to transfer the load between the frame body and the suspension cylinder. Specifically, the left suspension support 15 of the front axle is welded to the inner and outer side surfaces and top surface of the left longitudinal beam 11, the right suspension support 16 of the front axle is welded to the inner and outer side surfaces and top surface of the right longitudinal beam 12, and the upper gantry beam 3 is assembled with the left suspension support 15 and the right suspension support 16 of the front axle by bolts.

[0062] The left lifting fixing seat 17 is welded to the outer side surface and the top surface of the left longitudinal beam 11; the right lifting fixing seat 18 is welded to the outer side surface and the top surface of the right longitudinal beam 12, and the lifting support 2 is assembled with the left lifting fixing seat 17 and the right lifting fixing seat 18 by bolts.

[0063] The front bumper 14 is welded to the front end faces and outer side faces of the left longitudinal beam 11 and the right longitudinal beam 12 to improve the structural connection strength and rigidity.

[0064] Further solutions, such as Figure 4 , Figure 5As shown, the left longitudinal beam 11 and the right longitudinal beam 12 are both fixed with a plate 111 on the inner side and the outer side of the front section of the frame; the plate 111 on the left longitudinal beam 11 is welded to the left suspension support 15 of the front axle and the lower ring beam 13; the plate 111 on the right longitudinal beam 12 is welded to the right suspension support 16 of the front axle and the lower ring beam 13. The plate 111 achieves the purpose of increasing the connection strength of the upper and lower ring beam structures of the frame while strengthening the longitudinal beam locally.

[0065] Further solutions, such as Figure 4 As shown, the front lower covers of the left longitudinal beam 11 and the right longitudinal beam 12 are both provided with a protrusion 11-1 protruding outward and extending rearward, which is used to increase the connection surface with the front bumper 14; a bending plate 112 is welded between the outer side surface of the left longitudinal beam 11 and the top surface of the protrusion 11-1 thereon, forming a box-type structure for improving the local stiffness of the left longitudinal beam 11; a bending plate is welded between the outer side surface of the right longitudinal beam and the top surface of the protrusion thereon, forming a box-type structure for improving the local stiffness of the right longitudinal beam.

[0066] Further solutions, such as Figure 5 As shown, the inner side surfaces of the left longitudinal beam 11 and the right longitudinal beam 12 are provided with arc transition structures 11 - 2 at the connection positions with the front bumper 14 .

[0067] As can be seen from the above, the lower ring beam of the frame designed by the utility model is connected from the bottom of the front axle suspension seat to the bottom of the lifting support when avoiding the front axle of the vehicle, so that the front section of the frame forms a ring beam structure, thereby improving the torsional resistance of the frame; the front section of the frame longitudinal beam designed by the utility model is designed with a reinforcing plate, which is connected to the front axle suspension support and the lower ring beam, and strengthens the connection between the upper and lower ring beams while strengthening the local strength of the longitudinal beam; the front axle suspension support designed by the utility model is connected to the upper surface and inner and outer side surfaces of the longitudinal beam when it cannot be connected to the lower surface of the longitudinal beam, so as to ensure the connection strength; the front bumper designed by the utility model is connected to the front surface and outer side surface of the longitudinal beam, so as to enhance the structural rigidity of the frame.

[0068] The utility model also provides a mining dump truck, comprising the above-mentioned vehicle frame structure.

[0069] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0070] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0071] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A frame structure, characterized in that: include: The frame welding assembly includes the frame longitudinal beam and the lower ring beam; A lifting bracket is assembled on the top surface of the frame welding assembly located at the front section of the frame; An upper gantry beam, mounted on the top surface of the frame welding assembly located at the front section of the frame and located behind the lifting support; Among them, the lifting support and the upper gantry beam form two upper ring beams of the frame structure, the lower ring beam is fixed to the bottom surface of the frame longitudinal beam and is located below the lifting support and the upper gantry beam, and the lower ring beam and the two upper ring beams form a ring beam structure to improve the rigidity of the frame structure.

2. A frame structure according to claim 1, characterized in that: The lower ring beam comprises: Two side panel assemblies facing each other, one of which is connected to the left longitudinal beam of the frame rail, and the other side panel assembly is connected to the right longitudinal beam of the frame rail; At least one connecting pipe passes through the two side plate assemblies and is fixed to the two side plate assemblies.

3. A frame structure according to claim 2, characterized in that: The side panel assembly comprises: An outer plate and an inner plate facing each other, wherein the outer plate is welded to the outer side surface of the longitudinal beam, and the inner plate is welded to the inner side surface of the longitudinal beam; At least one bent plate is used to block the gap between the outer plate and the inner plate.

4. A vehicle frame structure according to claim 3, characterized in that: The outer side plate and the inner side plate are in an inverted triangle shape as a whole, and the connecting pipe is located at the bottom tip of the side plate assembly; There are two bending plates, both of which start from the outer peripheral surface of the bottom connecting tube and extend obliquely upward along the edges of both sides of the outer plate and the inner plate to the top of the outer plate and the inner plate.

5. A vehicle frame structure according to claim 1, characterized in that: The frame longitudinal beam is composed of a left longitudinal beam and a right longitudinal beam of a symmetrical structure, and the main bodies of the left longitudinal beam and the right longitudinal beam are long strip welded box-shaped.

6. A vehicle frame structure according to claim 5, characterized in that: The frame welding assembly also includes: The left suspension support of the front axle is welded to the inner and outer side surfaces and the top surface of the left longitudinal beam; A right suspension support of the front axle, welded to the inner and outer side surfaces and top surface of the right longitudinal beam; A left lifting fixing seat, welded to the outer side surface and top surface of the left longitudinal beam; A right lifting fixing seat, welded to the outer side surface and top surface of the right longitudinal beam; A front bumper, welded to the front end faces and outer side faces of the left longitudinal beam and the right longitudinal beam; Wherein, the upper gantry beam is assembled with the left suspension support of the front axle and the right suspension support of the front axle; the lifting support is assembled with the left lifting fixing seat and the right lifting fixing seat.

7. A vehicle frame structure according to claim 6, characterized in that: The left longitudinal beam and the right longitudinal beam are both fixed with a plate on the inner side and the outer side of the front section of the frame; The plate on the left longitudinal beam is welded to the left suspension support of the front axle and the lower ring beam; the plate on the right longitudinal beam is welded to the right suspension support of the front axle and the lower ring beam.

8. A vehicle frame structure according to claim 6, characterized in that: The front lower covers of the left longitudinal beam and the right longitudinal beam are both provided with protrusions that protrude outward and extend backward, so as to increase the connection surface with the front bumper; A bent plate is welded between the outer side surface of the left longitudinal beam and the top surface of the protruding portion thereon, forming a box-shaped structure for improving the local rigidity of the left longitudinal beam; A bent plate is welded between the outer side surface of the right longitudinal beam and the top surface of the protruding portion thereon, forming a box-type structure for improving the local rigidity of the right longitudinal beam.

9. A vehicle frame structure according to claim 6, characterized in that: The inner side surfaces of the left longitudinal beam and the right longitudinal beam are provided with arc transition structures at the connection positions with the front bumper.

10. A mining dump truck, characterized in that: The vehicle frame structure comprises the frame structure described in any one of claims 1 to 9.

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