Frame front end beam of off-highway mining dump truck, frame and off-highway mining dump truck

Abstract

The invention discloses an off-highway mining dump truck frame front end beam, a frame and an off-highway mining dump truck, the front end beam comprises a front plate, an upper plate, a lower plate, an inner web plate and an outer web plate, and the upper plate, the lower plate, the inner web plate and the outer web plate are all bent plates; the upper plate, the lower plate, the inner web and the outer web are oppositely arranged in parallel, the front plate is arranged at the front end of the front end beam and fixedly connected with the upper plate, the lower plate, the inner web and the outer web, and therefore the front end beam forms a box structure; the rear end of the front end beam is open so that the rear end of the front end beam can be spliced with the front end of a longitudinal beam of a frame in an inserted mode. Compared with other simple connection modes, the design that the rear end opening of the frame front end beam and the front end of the frame longitudinal beam are spliced in an inserted mode can provide larger contact area and connection strength; the whole frame front end beam is respectively bent towards the outer side of the frame, so that the bending rigidity of the frame is improved; and the internal space of the frame is enlarged, and different power systems and cooling systems can be adapted.

Description

Technical Field

[0001] The present invention relates to the field of off-road mining dump trucks, and more specifically, to a front end beam of an off-road mining dump truck frame, a frame and an off-road mining dump truck. Background Art

[0002] The front end beam of the existing dump truck frame is arranged in a straight manner, and a box or rib plate is often welded at the junction of the front end beam and the bumper to increase the structural strength and bending stiffness of the frame; the front end beam of the traditional mining car deviates to both sides of the frame and overlaps at the front ring beam. It is difficult to control the spatial angle here, and the front ring beam is made of castings, which is prone to defects due to poor welding technology; the technology iteration cycle of off-road dump trucks is short, and customers demand a wide variety of products. In order to adapt to a variety of power systems and cooling system arrangements, a larger layout space is required inside the front end beam of the frame. Summary of the invention

[0003] The purpose of the present invention is to provide a front end beam of an off-road mining dump truck frame, a frame and an off-road mining dump truck to solve the problem that the existing front end beam lap process of the frame is difficult and the internal space of the front end beam of the frame is insufficient to install a power system and a cooling system.

[0004] In order to achieve these purposes and other advantages according to the present invention, a front end beam of a frame of an off-road mining dump truck is provided, the front end beam comprising a front plate, an upper plate, a lower plate, an inner web plate, and an outer web plate, wherein the upper plate, the lower plate, the inner web plate, and the outer web plate are all bent plates;

[0005] The inner web and the outer web are arranged relatively parallel to each other and are used to fix the upper plate and the lower plate. The front plate is arranged at the front end of the front beam and is respectively fixedly connected to the upper plate, the lower plate, the inner web and the outer web, so that the front end of the front beam is closed, thereby forming a box structure of the front beam.

[0006] The rear end of the front end beam is open, and the lengths of the upper plate and the lower plate are not equal to the lengths of the inner web plate and the outer web plate, so that the rear end of the front end beam is butt-jointed with the front end of the frame longitudinal beam.

[0007] Preferably, the upper plate is a bent plate that is bent once, and comprises a first plate body and a second plate body from front to back, the first plate body is arranged horizontally, and the angle between the second plate body and the first plate body is an obtuse angle.

[0008] Preferably, the lower plate is a bent plate that is bent twice, including a third plate body, a fourth plate body, and a fifth plate body from front to back, the third plate body and the fifth plate body are horizontally arranged, the fourth plate body is inclined, and the angles between the fourth plate body and the third plate body and the fifth plate body are respectively obtuse angles.

[0009] Preferably, the inner web is a bent plate that is bent once, comprising a sixth plate body and a seventh plate body, and the angle between the sixth plate body and the seventh plate body is an obtuse angle; and,

[0010] The outer web is a bent plate that is bent once, and includes an eighth plate body and a ninth plate body, and the angle between the eighth plate body and the ninth plate body is an obtuse angle;

[0011] The inner web and the outer web have the same shape, bending position and bending angle.

[0012] Preferably, the bending angles of the upper plate, the lower plate, the inner web and the outer web are between 0° and 30°.

[0013] Preferably, the bending angles of the upper plate, the lower plate, the inner web and the outer web are between 18 and 25 degrees.

[0014] Preferably, the front end beam comprises a left front end beam arranged at the front end of the left longitudinal beam of the frame and a right front end beam arranged at the front end of the right longitudinal beam of the frame;

[0015] The front ends of the left front end beam and the right front end beam are bent toward the outside of the frame respectively, and the left front end beam and the right front end beam are symmetrically arranged with the center line of the frame in the direction of vehicle travel as the center axis.

[0016] The present invention also provides an off-road mining dump truck frame, comprising the above-mentioned off-road mining dump truck frame front end beam, and also comprising a front suspension longitudinal thrust support, wherein the front suspension longitudinal thrust support is fixedly connected to the fifth plate body of the lower plate of the front end beam.

[0017] The present invention also provides an off-road mining dump truck frame, comprising the above-mentioned off-road mining dump truck frame front end beam, and also comprising a front bumper, wherein the two ends of the front bumper are respectively fixedly connected to the left front end beam and the right front end beam.

[0018] The present invention also provides an off-road mining dump truck, comprising the above-mentioned off-road mining dump truck frame front end beam and / or off-road mining dump truck frame.

[0019] The present invention includes at least the following beneficial effects: the design of the rear end opening of the front end beam of the frame and the front end of the frame longitudinal beam being plugged and spliced ​​together can provide a larger contact area and connection strength compared with other simple connection methods; the front end beam of the frame is bent toward the outside of the frame as a whole, thereby improving the bending stiffness of the frame; the internal space of the frame is expanded, and different power systems and cooling systems can be adapted.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the front end beam of the frame of the off-road mining dump truck according to an embodiment of the present invention;

[0022] Figure 2 A top view of the off-road mining dump truck frame front end beam installed at the front end of the frame longitudinal beam according to an embodiment of the present invention;

[0023] Figure 3 It is a side view of the front end beam of the frame of the off-road mining dump truck according to an embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the front end of the frame of the off-road mining dump truck according to an embodiment of the present invention.

[0025] In the figure, 1-front end beam, 2-front suspension longitudinal thrust support, 3-front bumper;

[0026] 101-upper plate, 102-outer web, 103-inner web, 104-lower plate;

[0027] 1011-first plate, 1012-second plate;

[0028] 1021-sixth plate, 1022-seventh plate;

[0029] 1041 - the third plate, 1042 - the fourth plate, 1043 - the fifth plate. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0031] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] like Figures 1 to 4 As shown, the present invention provides a front end beam of an off-road mining dump truck frame, the front end beam comprises a front plate, an upper plate 101, a lower plate 104, an outer web 102, and an inner web 103, the upper plate 101, the lower plate 104, the outer web 102, and the inner web 103 are all bent plates;

[0033] The outer web 102 and the inner web 103 are arranged relatively parallel to each other and are used to fix the upper plate 101 and the lower plate 104. The front plate is arranged at the front end of the front beam and is fixedly connected to the upper plate 101, the lower plate 104, the outer web 102 and the inner web 103 respectively, so that the front end of the front beam is closed, so that the front beam forms a box structure.

[0034] The rear end of the front beam is open, and the lengths of the upper plate 101 and the lower plate 104 are not equal to the lengths of the outer web 102 and the inner web 103, so that the rear end of the front beam is butt-jointed with the front end of the frame longitudinal beam.

[0035] In the above embodiment, the design of the front end beam rear end opening and the front end of the frame longitudinal beam plugging and splicing can provide a larger contact area and connection strength compared with other simple connection methods. This connection method can make the front end beam and the frame longitudinal beam work better together, effectively transmit various forces generated during the vehicle driving process, such as traction, braking force, lateral force, etc., reduce structural fatigue and damage caused by unstable connection, and improve the reliability and service life of the entire frame.

[0036] The box structure itself has good torsion and bending resistance, and combined with the plug-in splicing method, it can transmit the force borne by the vehicle under complex road conditions along a reasonable path. For example, when the vehicle is driving on a rough road, the front beam of the box structure can evenly disperse the impact force from the road to the longitudinal beam of the frame to avoid stress concentration, thereby enhancing the overall stability and load-bearing capacity of the frame.

[0037] Furthermore, the upper plate 101 is a bent plate that is bent once, including a first plate body 1011 and a second plate body 1012 from front to back, the first plate body 1011 is horizontally arranged, and the angle between the second plate body 1012 and the first plate body 1011 is an obtuse angle.

[0038] The horizontal design of the first plate 1011 provides a larger connection area for the front bumper 3, and the bumper and the front end beam of the frame can fit together in a larger range, making the connection tighter. During the driving of the vehicle, the relative displacement between the bumper and the frame can be effectively reduced, the stability of the overall connection is enhanced, and the risk of loose connection due to bumps, vibrations, etc. is reduced.

[0039] The design of the second plate body 1012 being connected to the first plate body 1011 at an obtuse angle makes the second plate body 1012 inclined, so that the rear to the middle part of the top surface of the front end beam tilts downward, thereby providing a transition space from high to low for the installation of the power system, so that the power system can be placed more smoothly at the front end of the frame and better fit with the frame, ensuring the accurate installation position of the power system and facilitating its optimal performance.

[0040] Furthermore, the lower plate 104 is a bent plate that is bent twice, including a third plate body 1041, a fourth plate body 1042, and a fifth plate body 1043 from front to back, the third plate body 1041 and the fifth plate body 1043 are horizontally arranged, the fourth plate body 1042 is inclined, and the angles between the fourth plate body 1042 and the third plate body 1041 and the fifth plate body 1043 are respectively obtuse angles.

[0041] The horizontal design of the third plate 1041 makes the front bottom surface of the front beam horizontal, providing a clear and flat reference surface for the installation of the front bumper 3. The installer can align and fix the bumper to the frame more easily, reducing the adjustment and calibration work during the installation process and improving the installation efficiency.

[0042] At the same time, the first plate 1011 and the third plate 1041 are both arranged horizontally, which helps the front bumper 3 to maintain an accurate position and posture after installation, so that it can better play a buffering and protective role. The bumper can accurately contact and buffer obstacles during the driving process of the vehicle, and can effectively resist both frontal collisions and side scratches through reasonable angles and positions, reduce damage to the frame and other parts of the vehicle body, and improve the safety and durability of the vehicle during operation.

[0043] The horizontal design of the fifth plate 1043 provides a flat and stable connection surface for the front suspension longitudinal push support 2. Compared with the non-planar connection method, the horizontal surface can make the front suspension longitudinal push support 2 fit better with the front end beam of the frame, increase the contact area between the two, and thus improve the stability of the connection. During the driving process of the vehicle, especially when passing through bumpy roads or bearing a large load, this stable connection can effectively prevent the front suspension longitudinal push support 2 and the front end beam of the frame from loosening or shifting, thereby ensuring the normal operation of the vehicle suspension system.

[0044] The horizontal connection surface enables the connecting bolts or other connecting parts between the front suspension longitudinal thrust support 2 and the front end beam of the frame to bear the shear force more evenly. When the vehicle is driving, the front suspension longitudinal thrust support 2 will be subjected to various forces from the road surface, such as longitudinal traction, braking force and transverse lateral force, etc. These forces will be transmitted to the front end beam of the frame through the front suspension longitudinal thrust support 2. Due to the horizontal design of the fifth plate body 1043, the shear force borne by the connection part is more evenly distributed, and the connection failure problem caused by local stress concentration is not likely to occur, thereby enhancing the shear resistance and reliability of the entire connection structure.

[0045] The fifth plate 1043 provides a clear positioning reference for the installation of the front suspension longitudinal thrust support 2. During the vehicle assembly process, the installer can easily align and install the front suspension longitudinal thrust support 2 with the fifth plate 1043, which reduces the adjustment and calibration time during the installation process, improves the assembly efficiency, and ensures the installation quality.

[0046] Further, the outer web 102 is a bent plate that is bent once, including a sixth plate body 1021 and a seventh plate body 1022, and the angle between the sixth plate body 1021 and the seventh plate body 1022 is an obtuse angle; and,

[0047] The inner web 103 is a bent plate that is bent once, and includes an eighth plate body and a ninth plate body, and the angle between the eighth plate body and the ninth plate body is an obtuse angle;

[0048] The outer web 102 and the inner web 103 have the same shape, bending position and bending angle.

[0049] The outer web 102 and the inner web 103 are made of one-time bending plates, which are more flexible and simple in the manufacturing process compared to integral casting or forging processes. Each plate can be bent separately and then welded, which reduces the manufacturing difficulty, improves the production efficiency, and is conducive to large-scale production.

[0050] The design of the single-bending plate can reasonably utilize materials while ensuring the strength and performance of the front-end beam of the frame. Through precise bending design, the plate can exert its best mechanical properties at different parts, avoiding material waste and reducing material costs. At the same time, due to the simplification of the manufacturing process, it also reduces energy consumption and processing costs in the production process, improving the overall cost-effectiveness.

[0051] Further, the bending angles of the upper plate 101, the lower plate 104, the outer web 102, and the inner web 103 are between 0 and 30 degrees. Preferably, the bending angles of the upper plate 101, the lower plate 104, the outer web 102, and the inner web 103 are between 18 and 25 degrees.

[0052] The bending angles of the upper plate 101 , the lower plate 104 , the outer web 102 , and the inner web 103 are between 0° and 30°, which can basically meet the design requirements of most vehicle models for the front end beam.

[0053] The bending angle of 18 to 25° can further enable the multi-directional bending plate to form a suitable support structure in all directions, effectively improving the bending strength of the front beam of the frame. Bending within this angle range helps to improve the torsion resistance of the front beam of the frame. When the vehicle turns or drives on uneven roads, the body will generate torsional force. The appropriate bending angle can enable the plates to work together better to resist torsional force, prevent the frame from twisting and deformation, and ensure the overall structural safety of the vehicle.

[0054] Further, the front end beam comprises a left front end beam arranged at the front end of the left longitudinal beam of the frame and a right front end beam arranged at the front end of the right longitudinal beam of the frame;

[0055] The front ends of the left front end beam and the right front end beam are bent toward the outside of the frame respectively, and the left front end beam and the right front end beam are symmetrically arranged with the center line of the frame in the direction of vehicle travel as the center axis.

[0056] The front end of the front beam is bent toward the outside of the frame, increasing the width of the front end of the frame and providing more sufficient installation space for the power system and cooling system. This allows the vehicle to use power equipment with greater power and size to meet the high power requirements of off-road mining dump trucks under harsh working conditions. At the same time, it can also better arrange the water tank and other components of the cooling system to ensure that the power system can be effectively cooled during operation, thereby improving the reliability and working efficiency of the power system.

[0057] From the perspective of structural mechanics, bending the front end beam of the frame outward is equivalent to increasing the moment of inertia of the frame in the vertical plane. The moment of inertia is an important indicator to measure the ability of a structure to resist bending. The larger the moment of inertia, the higher the bending stiffness of the structure. Bending outward makes the material distribution of the front end beam more reasonable, away from the neutral axis of the frame, thereby increasing the moment of inertia. In the formula for calculating the bending stiffness of the frame, the moment of inertia is proportional to the bending stiffness. When the moment of inertia increases, the bending stiffness of the frame also increases accordingly, which can better resist bending deformation.

[0058] The present invention also provides an off-road mining dump truck frame, comprising the above-mentioned off-road mining dump truck frame front end beam, and also comprising a front suspension longitudinal push support, wherein the front suspension longitudinal push support is fixedly connected to the fifth plate body of the lower plate of the front end beam. Therefore, the off-road mining dump truck frame has the same advantages as the off-road mining dump truck frame front end beam 1 described in the above embodiment.

[0059] The present invention also provides an off-road mining dump truck frame, comprising the above-mentioned off-road mining dump truck frame front end beam, and also comprising a front bumper, wherein the two ends of the front bumper are respectively fixedly connected to the left front end beam and the right front end beam. Therefore, the off-road mining dump truck frame has the same advantages as the off-road mining dump truck frame front end beam 1 described in the above-mentioned embodiment.

[0060] The present invention also provides an off-road mining dump truck, comprising the above-mentioned off-road mining dump truck frame front end beam and / or off-road mining dump truck frame. Therefore, the off-road mining dump truck has the same advantages as the off-road mining dump truck frame front end beam 1 and / or off-road mining dump truck frame described in the above-mentioned embodiment.

[0061] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A front end beam of a non-road mining dump truck frame, characterized in that: The front end beam comprises a front plate, an upper plate, a lower plate, an inner web plate, and an outer web plate, wherein the upper plate, the lower plate, the inner web plate, and the outer web plate are all bent plates; The inner web and the outer web are arranged relatively parallel to each other and are used to fix the upper plate and the lower plate. The front plate is arranged at the front end of the front beam and is respectively fixedly connected to the upper plate, the lower plate, the inner web and the outer web, so that the front end of the front beam is closed, thereby forming a box structure of the front beam. The rear end of the front end beam is open, and the lengths of the upper plate and the lower plate are not equal to the lengths of the inner web plate and the outer web plate, so that the rear end of the front end beam is butt-jointed with the front end of the frame longitudinal beam.

2. The front end beam of the off-road mining dump truck frame according to claim 1, characterized in that: The upper plate is a bent plate that is bent once, and includes a first plate body and a second plate body from front to back, the first plate body is horizontally arranged, and the angle between the second plate body and the first plate body is an obtuse angle.

3. The front end beam of the off-road mining dump truck frame according to claim 1, characterized in that: The lower plate is a bent plate that is bent twice, including a third plate body, a fourth plate body, and a fifth plate body from front to back. The third plate body and the fifth plate body are horizontally arranged, the fourth plate body is inclined, and the angles between the fourth plate body and the third plate body and the fifth plate body are respectively obtuse angles.

4. The front end beam of the off-road mining dump truck frame according to claim 1, characterized in that: The inner web is a bent plate that is bent once, and includes a sixth plate body and a seventh plate body, wherein the angle between the sixth plate body and the seventh plate body is an obtuse angle; and, The outer web is a bent plate that is bent once, and includes an eighth plate body and a ninth plate body, and the angle between the eighth plate body and the ninth plate body is an obtuse angle; The inner web and the outer web have the same shape, bending position and bending angle.

5. The front end beam of the off-road mining dump truck frame according to claim 1, characterized in that: The bending angles of the upper plate, the lower plate, the inner web plate and the outer web plate are between 0° and 30°.

6. The front end beam of the off-road mining dump truck frame according to claim 5, characterized in that: The bending angles of the upper plate, the lower plate, the inner web plate and the outer web plate are between 18° and 25°.

7. The front end beam of the off-road mining dump truck frame according to claim 1, characterized in that: The front end beam comprises a left front end beam arranged at the front end of the left longitudinal beam of the frame and a right front end beam arranged at the front end of the right longitudinal beam of the frame; The front ends of the left front end beam and the right front end beam are bent toward the outside of the frame respectively, and the left front end beam and the right front end beam are symmetrically arranged with the center line of the frame in the direction of vehicle travel as the center axis.

8. An off-road mining dump truck frame, characterized in that: It comprises the front end beam of the frame of an off-road mining dump truck as described in any one of claims 1 to 7, and also comprises a front overhang longitudinal thrust support, wherein the front overhang longitudinal thrust support is fixedly connected to the fifth plate body of the lower plate of the front end beam.

9. An off-road mining dump truck frame, characterized in that: It comprises the front end beam of the off-road mining dump truck frame as described in claim 7, and also comprises a front bumper, wherein the two ends of the front bumper are respectively fixedly connected to the left front end beam and the right front end beam.

10. An off-road mining dump truck, characterized in that: It comprises the front end beam of the off-road mining dump truck frame and / or the off-road mining dump truck frame as described in any one of claims 1 to 9.

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