Vehicle frame, chassis assembly and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a vehicle frame, a chassis assembly and a vehicle, and the vehicle frame is of a riveted structure and comprises two longitudinal beams; the first ends of the two longitudinal beams are riveted with a first cross beam, and the second ends are riveted with a second cross beam; a third cross beam, a fourth cross beam and a fifth cross beam are arranged between the first cross beam and the second cross beam at intervals, the two ends of the fourth cross beam and the two ends of the fifth cross beam are connected with the two longitudinal beams respectively, third cross beam installation bases are arranged at the two ends of the third cross beam respectively, and the third cross beam installation bases are connected with the two longitudinal beams respectively. All the parts of the frame are connected with one another, compared with a welded frame, the installation precision is high, connection is reliable, the shock resistance and impact resistance are high, the frame is small in deformation, and then the cracking risk of the frame is greatly reduced.

Description

Technical Field

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

[0002] At present, most wide-body dump trucks on the market use the frame of road dump trucks, which is a welded one-piece structure. Since the welded structure frame has high welding process requirements, the quality of the weld cannot be effectively guaranteed. If there are welding defects in the weld, such as cracks, sand holes, slag inclusions, incomplete penetration, etc., the defects are likely to cause damage to the frame. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0004] To this end, the utility model provides a frame, which adopts a riveted structure, solving the technical problem in the prior art that a welded frame is easily damaged if there are welding defects.

[0005] The utility model also provides a chassis assembly comprising the vehicle frame.

[0006] The utility model also provides a vehicle comprising the chassis assembly.

[0007] According to a vehicle frame of the first embodiment of the utility model, the vehicle frame is a riveted structure, comprising two longitudinal beams;

[0008] The first ends of the two longitudinal beams are riveted to the first cross beam, and the second ends are riveted to the second cross beam;

[0009] A third crossbeam, a fourth crossbeam and a fifth crossbeam are arranged between the first crossbeam and the second crossbeam, and two ends of the fourth crossbeam and the fifth crossbeam are connected to the two longitudinal beams respectively;

[0010] The third cross beam seats are respectively arranged at both ends of the third cross beam, and the third cross beam mounting seats are respectively connected with the two longitudinal beams.

[0011] Furthermore, the two longitudinal beams are provided with mounting frames, which are arranged above the third cross beam and parallel to the third cross beam;

[0012] The mounting frame comprises a bracket and a mounting plate arranged on the bracket, and the bracket is connected with two longitudinal beams.

[0013] Furthermore, flip seats are respectively provided on both sides of the second cross beam in the width direction, and the flip seats are used to be hinged with the cargo box.

[0014] Furthermore, the two longitudinal beams are respectively provided with mounting plates, and the mounting plates are perpendicular to the longitudinal beams.

[0015] A chassis assembly according to a second aspect of the present utility model includes:

[0016] The frame of the first aspect or its various implementations;

[0017] The suspension system is mounted on the frame;

[0018] A steering system, which is mounted on the vehicle frame;

[0019] The transmission system is arranged on the frame and is used to connect with the power system;

[0020] A brake system, which is arranged on the frame and is used to be connected with the power system;

[0021] The lifting system is arranged on the vehicle frame and connected to the cargo box arranged on the vehicle frame, and is used for driving the cargo box to rise or fall.

[0022] Furthermore, a battery box is provided on the frame, and the battery box includes a back battery box and two side-mounted battery boxes;

[0023] The back battery box is connected to the mounting frame, and the two side-mounted battery boxes are respectively connected to the mounting plates.

[0024] Furthermore, the suspension system includes a front suspension and a rear suspension, the front suspension includes an oil-gas spring, and the rear suspension includes a leaf spring.

[0025] Furthermore, the braking system includes a drum brake and a motor back-drag brake, and the motor back-drag brake is used to be electrically connected to the power system.

[0026] A vehicle according to an embodiment of the third aspect of the utility model comprises the chassis assembly of the second aspect or its various implementations and a power system and a cargo box arranged on the chassis assembly.

[0027] Furthermore, the power system includes a powertrain and an eddy current retarder, the powertrain is electrically connected to the battery in the battery box, and the eddy current retarder is connected to the powertrain and the transmission system.

[0028] One of the above technical solutions has at least the following advantages or beneficial effects:

[0029] A frame of the embodiment of the utility model includes two longitudinal beams; the first end of the two longitudinal beams is riveted with a first cross beam, and the second end is riveted with a second cross beam; a third cross beam, a fourth cross beam and a fifth cross beam are arranged between the first cross beam and the second cross beam, and the ends of the third cross beam, the fourth cross beam and the fifth cross beam are connected to the two longitudinal beams respectively. It can be seen that the frame is a riveted structure. Compared with a welded frame, its components are connected to each other, with high installation accuracy, reliable connection, strong earthquake resistance and impact resistance, so that the frame deformation is small, thereby greatly reducing the risk of frame cracking.

[0030] The chassis assembly provided in the embodiment of the utility model is provided with the frame described above. Since the frame has the above-mentioned technical effects, the chassis assembly provided with the frame should also have corresponding technical effects.

[0031] The vehicle provided by the embodiment of the utility model is provided with the chassis assembly described above. Since the chassis assembly has the above-mentioned technical effects, the vehicle provided with the chassis assembly should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a frame of a first embodiment provided by the utility model is shown;

[0033] Figure 2 A schematic structural diagram of a chassis assembly according to a second embodiment of the present invention is shown;

[0034] Figure 3 A schematic structural diagram of a front suspension in a chassis assembly according to a second embodiment of the present invention is shown;

[0035] Figure 4 A schematic structural diagram of a rear suspension in a chassis assembly of a second embodiment provided by the utility model is shown;

[0036] Figure 5 A schematic structural diagram of a vehicle according to a third embodiment of the present utility model is shown.

[0037] [Description of Reference Numerals]

[0038] 1. Frame; 11. Longitudinal beam; 12. First cross beam; 13. Second cross beam; 14. Third cross beam; 15. Fourth cross beam; 16. Fifth cross beam;

[0039] 17. Mounting frame; 17-1. Bracket; 17-2. Mounting plate;

[0040] 18. Support seat; 19. Limit plate;

[0041] 2. Suspension system; 21. Front suspension; 22. Rear suspension;

[0042] 3. Power system; 4. Braking system;

[0043] 5. Battery box; 51. Back battery box; 52. Side battery box;

[0044] 6. Cargo box; 7. Steering system; 8. Lifting system; 9. Transmission system; 10. Cab. DETAILED DESCRIPTION

[0045] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0046] As mentioned above, the inventors found in their research on the frame, chassis assembly and vehicle that the frame 1 is generally a welded frame, but the welding frame has high requirements on welding technology and the quality of the weld cannot be guaranteed. The use environment of mining vehicles is relatively harsh, and the road surface is bumpy and uneven. Long-term bumps can easily cause cracks in the welds, posing a safety hazard.

[0047] Secondly, the front suspension 21 and the rear suspension 22 of the suspension system 2 of the existing chassis assembly both use leaf springs, which have a poor vibration isolation rate, a poor driving experience for the driver, and a risk of frequent breakage during operation, posing a safety hazard.

[0048] In order to solve at least one of the technical problems existing in the prior art or related art, the utility model provides a frame, a chassis assembly and a vehicle. Figures 1 to 5 To describe the frame, chassis assembly and vehicle according to some embodiments of the present invention.

[0049] See also Figure 1 The utility model provides a vehicle frame of the first embodiment, wherein the vehicle frame 1 is a riveted structure, comprising two longitudinal beams 11 arranged in parallel, wherein the first end of the longitudinal beam 11 is riveted with a first cross beam 12, and the second end is riveted with a second cross beam 13, wherein the first end and the second end are two ends of the longitudinal beam 11 in the extending direction. A third cross beam 14, a fourth cross beam 15 and a fifth cross beam 16 are arranged between the first cross beam 12 and the second cross beam 13, wherein the number of the fourth cross beams 15 is two, and the two ends of the two fourth cross beams 15 and the fifth cross beam 16 are connected to the two longitudinal beams 11 by bolts respectively. The third cross beam 14 is located below the two longitudinal beams 11, and the two ends of the third cross beam 14 are respectively provided with a third cross beam mounting seat, and the third cross beam mounting seat is respectively connected to the two longitudinal beams 11 by bolts. The first cross beam 12, the second cross beam 13, the fourth cross beam 15 and the fifth cross beam 16 are all located between the two longitudinal beams 11, and are used to increase the strength of the vehicle frame 1, and can also provide support points for wiring harnesses or other components.

[0050] It can be understood that the two longitudinal beams 11 arranged in parallel in this embodiment make the width of the frame 1 equal at the front and rear, and the first cross beam 12, the second cross beam 13, the third cross beam 14, the fourth cross beam 15 and the fifth cross beam 16 are riveted to the two longitudinal beams 11 through the wing surface, so that the frame 1 as a whole has sufficient torsional rigidity and can withstand large longitudinal and lateral loads, thereby increasing the strength of the frame 1 and making the frame 1 not easily damaged.

[0051] The first cross beam 12 is disposed at a first end of the longitudinal beam 11 to increase the torsion resistance of the front end of the longitudinal beam 11 , protect structures such as the cab, radiator, and engine, and avoid damage caused by deformation of the longitudinal beam 11 .

[0052] The second cross beam 13 is arranged at the second end of the longitudinal beam 11. The arrangement of the second cross beam 13 makes the rear part of the frame 1 a closed frame, which is used to enhance the anti-torsion ability of the rear part of the frame 1. Support seats 18 are also arranged on both sides of the width direction of the second cross beam 13, and the support seats 18 are used to support the whole to ensure the overturning of the cargo box 7. A towing hook is also installed on the second cross beam 13 to tow a trailer.

[0053] The provision of the third cross beam 14 can ensure the rigidity of the lifting cylinder seat when the cargo box 7 is lifted, thereby improving the bending resistance of the frame 1 to ensure the stability of the frame 1 in use.

[0054] The number of the fourth cross beams 15 is two, and the purpose of providing the fourth cross beams 15 is to improve the overall strength and rigidity of the frame 1 so as to enhance the anti-torsion capability of the middle portion of the frame 1 .

[0055] The fifth cross beam 16 is used to enhance the torsion resistance of the rear portion of the frame 1 and is also used to transmit driving force and braking force.

[0056] Furthermore, a mounting frame 17 is provided on the two longitudinal beams 11 . The mounting frame 17 is used to fix the lifting system 8 . The mounting frame 17 is disposed above the third cross beam 14 and is parallel to the third cross beam 14 .

[0057] Exemplarily, the mounting frame 17 includes a bracket 17-1 and a mounting plate 17-2 disposed on the bracket 17-1. The bracket 17-1 is connected to the two longitudinal beams 11 by bolts respectively, and the mounting plate 17-2 is a planar structure.

[0058] Furthermore, a turning seat 18 is provided on both sides of the second cross beam 13 in the width direction. The turning seat 18 is used to be hinged with the cargo box 6 to provide a rotation support for the turning of the cargo box 6.

[0059] Furthermore, the two longitudinal beams 11 are respectively provided with limit plates 19 , which are perpendicular to the longitudinal beams 11 . The limit plates 19 are used to limit the cargo box 6 to prevent the cargo box 6 from moving.

[0060] In this embodiment, the frame 1 is a riveted structure. Compared with the welded frame 1, the components of the riveted frame 1 are interconnected by bolts, which has high installation accuracy, reliable connection, and strong shock and impact resistance, thereby resulting in small deformation of the frame 1 and no pain point of cracking of the frame 1.

[0061] In the second aspect embodiment, the vehicle frame 1 of the first aspect exemplary embodiment can be arranged on the chassis assembly, and the chassis assembly also includes a suspension system 2, a steering system 7, a transmission system 9, a brake system 4 and a lifting system 8 arranged on the vehicle frame 1. Among them, a battery box 5 is provided on the vehicle frame 1, and a battery is installed in the battery box 5. The battery is electrically connected to the power system 3 and is used to provide power for the power system 3. The transmission system 9 is used to be connected to the power system 3 to transmit the power output by the power system 3. The brake system 9 is used to be connected to the power system 3, and the power output end of the lifting system 8 is connected to the cargo box 6 arranged on the vehicle frame 1. The lifting system 8 can push the cargo box 6 up or down when it works.

[0062] It can be understood that the chassis assembly of this embodiment adopts the above-mentioned frame 1. Since the frame 1 has the advantages of high connection strength, strong vibration resistance and impact resistance, the safety of the chassis assembly can be ensured, thereby improving the service life of the chassis assembly.

[0063] Furthermore, if Figure 4 and Figure 5 As shown, the suspension system 2 includes a front suspension 21 and a rear suspension 22. The front suspension 21 includes an oil-gas spring, and the rear suspension 22 includes a leaf spring. Compared with the existing leaf spring structure, the oil-gas spring of the front suspension 21 increases its stiffness nonlinearly with the increase of load, which can effectively reduce the impact caused by uneven road surface, thereby increasing the life of the frame 1 and the whole vehicle, and providing a better driver experience.

[0064] Furthermore, the chassis assembly of this embodiment also includes a battery box 5, which includes a back battery box 51 and two side-mounted battery boxes 52, wherein 2 / 3 of the batteries are placed in the back battery box 51, and the other 1 / 3 of the batteries are placed in the side-mounted battery box 52.

[0065] Specifically in this embodiment, the back battery box 51 is arranged on the mounting frame 17, and the mounting plate 17-2 is used to support and drag the back battery box 51. The back battery box 51 can be completely shielded by the brim of the cargo box 7 to prevent the battery from being damaged by earth, gravel and other materials. During assembly, the back battery box 51 can be pre-assembled, and then hoisted as a whole to the top of the frame 1 by a crane, and finally the back battery box 51 is installed on the frame 1 by bolts to improve assembly efficiency.

[0066] Two side-mounted battery boxes 52 are arranged on the outside of the two longitudinal beams 11. The longitudinal beams 11 are provided with mounting holes adapted to the side-mounted battery boxes 52. Since the cantilever length of the side-mounted battery box 52 is short, the structure is safe and reliable, and its ground clearance is high, which can prevent the box body from being damaged by splashing soil and rocks, thereby effectively avoiding the occurrence of safety accidents.

[0067] Furthermore, the braking system 9 of this embodiment includes a drum brake and a motor back-drag braking module. The motor back-drag braking module is electrically connected to the power system 3, specifically to the motor of the power system 3, for sending an electrical signal to the motor for controlling forward and reverse rotation of the motor.

[0068] It should be noted that in the disclosed embodiment, the steering system 7, lifting system 8, transmission system 9 and cab 10 of the chassis assembly all adopt existing structures without any improvement, so they are not described in detail in this embodiment.

[0069] The above is the specific structure of the chassis assembly of the second embodiment. Since the chassis assembly provided in this embodiment has the frame 1 provided in the first embodiment, the chassis assembly has all the beneficial effects of the frame 1 provided in the first embodiment, which will not be repeated here.

[0070] In the third aspect embodiment, the chassis assembly of the second aspect exemplary embodiment may be disposed in a vehicle, and the vehicle further includes a cargo box 6 and a power system 3 disposed on the chassis assembly.

[0071] The power system 3 includes a powertrain and an eddy current retarder, the powertrain is connected to a battery box 5, and the battery box 5 is used to supply power to the powertrain. The eddy current retarder is connected to a transmission system 9, and the power output by the powertrain is distributed and transmitted by the eddy current retarder and the transmission system 9.

[0072] The eddy current retarder is a secondary retarder that uses the electromagnetic principle to convert the kinetic energy of the vehicle into heat energy for deceleration and braking. The setting of the eddy current retarder achieves contactless braking, safe starting, more comfortable driving, and more economical cost. In the face of heavy-load downhill conditions, it can achieve intelligent electric balance and smooth braking, which well solves the impact of thermal decay effect on braking safety.

[0073] The powertrain of this embodiment includes two motors and two gearboxes arranged in parallel, the motors are electrically connected to the battery box 5, and the gearboxes are connected to the motors. The dual motor and dual gearbox arrangement increases the service life of the powertrain 3. When one of the motors and gearboxes fails, the other motor and gearbox can continue to be used, thereby extending the service life of the chassis assembly and the entire vehicle.

[0074] Specifically in this embodiment, the motor anti-drag brake module of the brake system 9 of the chassis assembly is electrically connected to the motor of the power system 3 of this embodiment.

[0075] Motor reverse braking is a method of quickly braking the motor through the reverse torque on the motor rotor. The reverse torque of the motor reverse braking is obtained by changing the direction of the rotating magnetic field. When the rotor speed is zero, the motor will rotate in the opposite direction. With the help of the zero-speed reverse brake switch, the motor is disconnected from the power supply, thereby achieving the purpose of braking.

[0076] This embodiment uses three methods, drum braking, motor back-drag braking and eddy current retarder contactless braking, in combination, providing triple insurance, so that the braking distance is short, the reliability is high, and the safety is guaranteed.

[0077] In the exemplary embodiment, the vehicle is a wide-body dump truck, and its cargo box 6 is preferably a diamond-shaped baffle box, which adopts a "five vertical and eight horizontal" through-type skeleton structure, has high overall strength, high stress level, better bearing capacity, and greatly improved service life of the cargo box 6. The side panels, bottom panels, and rear door panels of the cargo box 6 are made of high-strength wear-resistant plates, which can cope with the cracking problem of the cargo box 6 caused by frequent loading and unloading. Compared with the existing technology, the problem of unclean unloading is solved, ensuring maximum loading for each transportation, thereby improving transportation efficiency.

[0078] The above is the specific structure of the vehicle of the third aspect embodiment. Since the vehicle provided in this embodiment has the chassis assembly provided in the second aspect embodiment, the vehicle has all the beneficial effects of the chassis assembly provided in the second aspect embodiment, which will not be repeated here.

[0079] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0082] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0083] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A frame, characterized in that: The frame is a riveted structure and includes two longitudinal beams (11); The first ends of the two longitudinal beams (11) are riveted to the first cross beam (12), and the second ends are riveted to the second cross beam (13); A third crossbeam (14), a fourth crossbeam (15) and a fifth crossbeam (16) are arranged between the first crossbeam (12) and the second crossbeam (13), and two ends of the fourth crossbeam (15) and the fifth crossbeam (16) are respectively connected to the two longitudinal beams (11); Both ends of the third cross beam (14) are also respectively connected to third cross beam mounting seats, and the third cross beam mounting seats are respectively connected to the two longitudinal beams.

2. The frame according to claim 1, characterized in that A mounting frame (17) is also provided on the two longitudinal beams (11), and the mounting frame (17) is arranged above the third cross beam (14) and parallel to the third cross beam (14); The mounting frame (17) comprises a bracket (17-1) and mounting plates (17-2) arranged on two sides of the bracket, and the bracket (17-1) is respectively connected to the two longitudinal beams (11).

3. The frame according to claim 2, characterized in that: Turning seats (18) are also provided on both sides of the second cross beam (13) in the width direction, respectively, and the turning seats (18) are used to be hinged to the cargo box (6).

4. The frame according to claim 3, characterized in that: The two longitudinal beams (11) are also provided with respective limit plates (19), wherein the limit plates (19) are perpendicular to the longitudinal beams (11).

5. A chassis assembly, characterized in that: include: The frame (1) according to any one of claims 1 to 4; A suspension system (2) is arranged on the vehicle frame (1); A steering system (7) disposed on the vehicle frame (1); A transmission system (9) is disposed on the vehicle frame (1) and is used to be connected to the power system (3); A brake system (4) is provided on the vehicle frame (1) and is used to be connected to the power system (3); A lifting system (8) is disposed on the vehicle frame (1) and is connected to a cargo box (6) disposed on the vehicle frame (1) and is used to drive the cargo box (6) to rise or fall.

6. The chassis assembly according to claim 5, characterized in that: The frame (1) is also provided with a battery box (5), and the battery box (5) comprises a back battery box (51) and two side-mounted battery boxes (52); The back battery box (51) is connected to the mounting frame (17), and the two side-mounted battery boxes (52) are respectively connected to the two longitudinal beams (11) and are located outside the two longitudinal beams (11).

7. The chassis assembly according to claim 5, characterized in that: The suspension system (2) comprises a front suspension (21) and a rear suspension (22); the front suspension (21) comprises an oil-gas spring, and the rear suspension (22) comprises a leaf spring.

8. The chassis assembly according to claim 5, characterized in that: The braking system (4) comprises a drum brake and a motor anti-drag brake module; The motor reverse braking module is used to be electrically connected to the power system (3).

9. A vehicle, characterized in that: include: The chassis assembly according to any one of claims 5 to 8; A power system (3) is arranged on the chassis assembly; The cargo box (6) is arranged on the chassis assembly.

10. The vehicle according to claim 9, characterized in that The power system (3) comprises a power assembly and an eddy current retarder, the power assembly is electrically connected to a battery placed in the battery box (5), and the eddy current retarder is connected to the power assembly and a transmission system (9).

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