Multi-axle suspension moving vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a multi-axle suspension moving vehicle which comprises a vehicle body and a semitrailer assembly, the vehicle body comprises a vehicle head and a first vehicle frame, a first connecting frame is fixedly arranged at one end of the first vehicle frame, and a front axle assembly, a front wheel assembly and a front suspension assembly are arranged at the bottom of the vehicle frame; two middle axle assemblies, two middle wheel assemblies and two middle suspension assemblies are arranged at the bottom of the first connecting frame, a power mechanism is arranged in one middle axle assembly, a gear linkage mechanism is arranged in the other middle axle assembly, a telescopic shaft is arranged between the power mechanism and the gear linkage mechanism in a transmission connection mode, and the telescopic shaft is connected with the middle wheel assemblies. The semitrailer assembly comprises a second frame, a second connecting frame is fixedly arranged at one end of the second frame, and a plurality of rear axle assemblies, a plurality of rear wheel assemblies and a plurality of rear suspension assemblies are arranged at the bottom of the second frame. The semitrailer assembly has good damping performance and reliable operation stability, and it is guaranteed that the semitrailer runs stably, and is safe and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle technology, and in particular to a multi-axle suspension mobile vehicle. Background Art

[0002] The semi-trailer suspension device is one of the main parts of the semi-trailer. Its main function is to effectively, reasonably and firmly connect the moving parts of the semi-trailer axle with the semi-trailer beam. The suspension device of the highway semi-trailer has a suspension bracket welded to the lower end of the semi-trailer's main longitudinal beam. The load on the body is transmitted to the leaf spring through the suspension bracket, and then to the axle; the other side of the axle is connected to an adjacent leaf spring bracket through a tension rod to withstand the lateral force. For a semi-trailer with this suspension method, when some wheels are in contact with the ground and some wheels are suspended in the air, all the loads of the semi-trailer will be borne by the wheels in contact with the ground. At this time, on the one hand, it is possible to overload other axles, and on the other hand, it will reduce the traction of the multi-axle drive vehicle, which is very likely to cause the wheels, axles and leaf springs to be damaged due to exceeding their strength limit.

[0003] At the same time, during the driving process of the vehicle, each steel plate of the leaf spring of the semi-trailer suspension device will move up and down and back and forth, thereby generating friction, and this friction will interact with each other, making the spring steel plate extremely easy to be damaged, thus posing a great hidden danger to the driver's personal safety. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a multi-axle suspension mobile vehicle to solve the problems raised in the above background technology.

[0005] Based on the above purpose, the present invention provides a multi-axle suspension mobile vehicle, including a vehicle body and a semi-trailer assembly, the vehicle body includes a head and a first frame, the top of one end of the first frame is equipped with a head, the other end of the first frame is fixedly equipped with a first connecting frame, the bottom of the frame is equipped with a front axle assembly, a front wheel assembly and a front suspension assembly, the bottom of the first connecting frame is equipped with two middle axle assemblies, two middle wheel assemblies and two middle suspension assemblies, one of the middle axle assemblies is equipped with a power mechanism that is transmission-connected to one of the middle wheel assemblies, the other middle axle assembly is equipped with a gear linkage mechanism that is transmission-connected to the other middle wheel assembly, and a telescopic shaft is transmission-connected between the power mechanism and the gear linkage mechanism;

[0006] The semi-trailer assembly includes a second frame, a second connecting frame is fixedly provided at one end of the second frame, the second connecting frame is detachably connected to the first connecting frame, and a plurality of rear axle assemblies, a plurality of rear wheel assemblies and a plurality of rear suspension assemblies are installed at the bottom of the second frame.

[0007] Preferably, the front axle assembly comprises:

[0008] A first axle, arranged at the bottom of the first frame, two first fixing frames are fixedly arranged at the bottom of the first axle, and each of the first fixing frames is fixedly connected to the front suspension assembly;

[0009] Two first supporting oil cylinders have one end fixedly connected to the first fixing frame respectively, and the other end fixedly connected to one side of the first frame respectively.

[0010] Preferably, the front suspension assembly comprises:

[0011] A first connecting plate, both ends of which are fixedly provided with first spring plates, each of which is respectively fixedly provided at the bottom of the first fixing frame, and each of which is hingedly provided with a first support frame at one end of the first spring plate away from the first connecting plate, and each of which is fixedly connected to the first frame;

[0012] The bottoms of the two first load-bearing airbags are respectively fixed on the first spring plates, and the top of each of the first load-bearing airbags is respectively fixedly connected to one side of the first frame.

[0013] Preferably, the middle axle assembly comprises:

[0014] A second vehicle axle is arranged at the bottom of the first connecting frame, two second fixing frames are fixedly arranged at the bottom of the second vehicle axle, and each of the second fixing frames is fixedly connected to the middle suspension assembly;

[0015] Two second supporting oil cylinders have one end fixedly connected to the first fixing frame respectively, and the other end fixedly connected to one side of the first frame respectively.

[0016] Preferably, the middle suspension assembly comprises:

[0017] A second connecting plate, both ends of which are fixedly provided with second spring plates, each of which is respectively fixedly provided at the bottom of the second fixing frame, and each of which is hingedly provided with a second supporting frame at one end of the second spring plate away from the second connecting plate, and each of which is fixedly connected with the first connecting frame;

[0018] The bottoms of the two second load-bearing airbags are respectively fixed on the second spring plates, and the top of each of the second load-bearing airbags is respectively fixedly connected to one side of the first connecting frame.

[0019] Preferably, the rear axle assembly comprises:

[0020] a third axle, disposed at the bottom of the second frame, and the rear suspension assembly is fixed on the third axle;

[0021] Two air suspension systems are both installed on the third vehicle axle.

[0022] Preferably, the rear suspension assembly comprises:

[0023] Two fastening assemblies, one end of each of which is fixed on the third axle, and the other end of each of which is fixed with a leaf spring, both ends of each leaf spring are clamped with a third support frame, and each of the third support frames is fixedly connected to one side of the second frame;

[0024] Two lifting cylinders have one end each hinged to the bottom of the fastening assembly and the other end each hinged to the bottom of a third support frame.

[0025] Preferably, the fastening assembly comprises:

[0026] A bottom plate, arranged at the bottom of the third axle, one end of the bottom plate being hinged to one end of the lifting cylinder;

[0027] A nesting plate is arranged at the bottom of the third axle, two first limiting convex plates for clamping two sides of the third axle are fixedly arranged on the top of the nesting plate, and the bottom of the nesting plate is fitted on the top of the bottom plate;

[0028] A limiting fixing plate is arranged on the top of the third axle, two second limiting convex plates for clamping two sides of the third axle are fixedly arranged on the bottom of the limiting fixing plate, and the bottom of the leaf spring is arranged on the top of the limiting fixing plate;

[0029] A top plate, arranged on the top of the leaf spring, with two U-shaped protrusions fixed on the top of the top plate;

[0030] Two U-shaped bolts are respectively sleeved on the U-shaped protrusions, and both ends of each U-shaped bolt pass through the top plate, the limiting fixing plate, the nesting plate and the bottom plate, so that the rear suspension assembly is fixed on the third axle.

[0031] Beneficial effects of the present invention:

[0032] 1. The present invention has good shock absorption and reliable handling stability, eliminates the disadvantage of large frequency deviation difference between empty and full load states of transport vehicles, ensures smooth driving of vehicles, and is safe and reliable. It can be widely used in the transportation of precision instruments and other equipment and materials.

[0033] 2. The present invention can limit the leaf spring in multiple directions from the up and down direction, the front and back direction, and the left and right direction, thereby solving the problem of large friction caused by the front and back movement between the spring steel plate and the leaf spring bracket in the semi-trailer suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0036] Figure 2 It is a schematic diagram of the three-dimensional structure of the front suspension assembly according to an embodiment of the present invention;

[0037] Figure 3 is a schematic diagram of the three-dimensional structure of the suspension assembly in an embodiment of the present invention;

[0038] Figure 4 It is a schematic diagram of the three-dimensional structure of the rear suspension assembly according to an embodiment of the present invention;

[0039] Figure 5 It is a schematic diagram of the three-dimensional structure of the fastening assembly according to an embodiment of the present invention.

[0040] The markings in the figure are:

[0041] 1. Front of the vehicle; 2. First vehicle frame; 3. First connecting frame; 4. Front wheel assembly; 5. Middle wheel assembly; 6. Second vehicle frame; 7. Second connecting frame; 8. Rear wheel assembly; 9. First vehicle axle; 10. First fixing frame; 11. First supporting oil cylinder; 12. First connecting plate; 13. First spring plate; 14. First supporting frame; 15. First load-bearing airbag; 16. Second vehicle axle; 17. Second fixing frame; 18. Second supporting oil cylinder; 1 9. Second connecting plate; 20. Second spring plate; 21. Second support frame; 22. Second load-bearing airbag; 23. Third axle; 24. Air suspension system; 25. Fastening assembly; 26. Leaf spring; 27. Third support frame; 28. Lifting cylinder; 29. ​​Bottom plate; 30. Nesting plate; 31. First limiting convex plate; 32. Limiting fixing plate; 33. Second limiting convex plate; 34. Top plate; 35. U-shaped convex block; 36. U-shaped bolt. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0043] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] like Figures 1 to 5 As shown, a multi-axle suspension mobile vehicle includes a vehicle body and a semi-trailer assembly, wherein the vehicle body includes a front end 1 and a first frame 2, the top of one end of the first frame 2 is equipped with the front end 1, the other end of the first frame 2 is fixedly equipped with a first connecting frame 3, the bottom of the frame is equipped with a front axle assembly, a front wheel assembly 4 and a front suspension assembly, the bottom of the first connecting frame 3 is equipped with two middle axle assemblies, two middle wheel assemblies 5 and two middle suspension assemblies, one of the middle axle assemblies is equipped with a power mechanism that is transmission-connected to one of the middle wheel assemblies 5, the other middle axle assembly is equipped with a gear linkage mechanism that is transmission-connected to the other middle wheel assembly 5, and a telescopic shaft is transmission-connected between the power mechanism and the gear linkage mechanism;

[0045] The semi-trailer assembly includes a second frame 6, one end of which is fixedly provided with a second connecting frame 7, the second connecting frame 7 is detachably connected to the first connecting frame 3, and the bottom of the second frame 6 is provided with a plurality of rear axle assemblies, a plurality of rear wheel assemblies 8 and a plurality of rear suspension assemblies.

[0046] As an optional embodiment, the front axle assembly includes:

[0047] A first vehicle axle 9 is arranged at the bottom of the first vehicle frame 2, two first fixing frames 10 are fixedly arranged at the bottom of the first vehicle axle 9, and each of the first fixing frames 10 is fixedly connected to the front suspension assembly;

[0048] One end of the two first supporting cylinders 11 is fixedly connected to the first fixing frame 10 , and the other end is fixedly connected to one side of the first frame 2 .

[0049] As an optional embodiment, the front suspension assembly includes:

[0050] A first connecting plate 12, both ends of which are fixedly provided with first spring plates 13, each of which is fixedly provided at the bottom of the first fixing frame 10, and each of which is hingedly provided with a first support frame 14 at one end away from the first connecting plate 12, and each of which is fixedly connected to the first frame 2;

[0051] The bottoms of the two first load-bearing airbags 15 are respectively fixed on the first spring plate 13 , and the top of each of the first load-bearing airbags 15 is respectively fixedly connected to one side of the first frame 2 .

[0052] As an optional embodiment, the middle axle assembly includes:

[0053] A second vehicle axle 16 is arranged at the bottom of the first connecting frame 3, two second fixing frames 17 are fixedly arranged at the bottom of the second vehicle axle 16, and each of the second fixing frames 17 is fixedly connected to the middle suspension assembly;

[0054] One end of the two second supporting cylinders 18 is fixedly connected to the first fixing frame 10 , and the other end is fixedly connected to one side of the first frame 2 .

[0055] As an optional embodiment, the middle suspension assembly includes:

[0056] The second connecting plate 19 has second spring plates 20 fixedly disposed at both ends thereof, each of the second spring plates 20 being fixedly disposed at the bottom of the second fixing frame 17, and each of the second spring plates 20 having a second support frame 21 hingedly disposed at one end away from the second connecting plate 19, and each of the second support frames 21 being fixedly connected to the first connecting frame 3;

[0057] The bottoms of the two second load-bearing airbags 22 are respectively fixed on the second spring plate 20 , and the top of each of the second load-bearing airbags 22 is respectively fixedly connected to one side of the first connecting frame 3 .

[0058] For example, the present invention has good shock absorption and reliable handling stability, eliminates the disadvantage of large frequency deviation difference between empty and full load states of transport vehicles, ensures smooth and safe driving of vehicles, and can be widely used in the transportation of precision instruments and other equipment and materials.

[0059] As an optional embodiment, the rear axle assembly includes:

[0060] A third axle 23 is disposed at the bottom of the second frame 6, and the rear suspension assembly is fixed on the third axle 23;

[0061] Two air suspension systems 24 are both installed on the third axle 23 .

[0062] Preferably, the rear suspension assembly comprises:

[0063] Two fastening assemblies 25, one end of each of which is fixed on the third axle 23, and the other end of each of which is fixed with a leaf spring 26, and both ends of each leaf spring 26 are clamped with a third support frame 27, and each of the third support frames 27 is fixedly connected to one side of the second frame 6;

[0064] Two lifting cylinders 28 have one end hinged to the bottom of the fastening assembly 25 and the other end hinged to the bottom of a third support frame 27 .

[0065] As an optional embodiment, the fastening assembly 25 includes:

[0066] A bottom plate 29 is provided at the bottom of the third axle 23, and one end of the bottom plate 29 is hinged to one end of the lifting cylinder 28;

[0067] A nesting plate 30 is arranged at the bottom of the third axle 23. Two first limiting convex plates 31 for clamping two sides of the third axle 23 are fixedly arranged on the top of the nesting plate 30. The bottom of the nesting plate 30 is fitted on the top of the bottom plate 29.

[0068] A limiting fixing plate 32 is arranged on the top of the third axle 23, and two second limiting convex plates 33 for clamping two sides of the third axle 23 are fixedly arranged on the bottom of the limiting fixing plate 32, and the bottom of the leaf spring 26 is arranged on the top of the limiting fixing plate 32;

[0069] A top plate 34 is disposed on the top of the leaf spring 26, and two U-shaped protrusions 35 are fixed on the top of the top plate 34;

[0070] Two U-shaped bolts 36 are respectively mounted on the U-shaped protrusions 35 , and both ends of each U-shaped bolt 36 pass through the top plate 34 , the limiting fixing plate, the nesting plate 30 and the bottom plate 29 , so that the rear suspension assembly is fixed on the third axle 23 .

[0071] For example, by designing the first limiting protrusion 31, after the nested plate 30 is placed on the bottom plate 29, the nested plate 30 can obtain the support force provided by the stable bottom plate 29, which is beneficial to improve the connection stability of various components during the bumping process of the suspension system of the present invention and reduce safety hazards.

[0072] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-axle suspension mobile vehicle, comprising a vehicle body and a semi-trailer assembly, characterized in that: The vehicle body comprises a front end (1) and a first frame (2), the front end (1) being mounted on the top of one end of the first frame (2), the first connecting frame (3) being fixedly mounted on the other end of the first frame (2), the front axle assembly, the front wheel assembly (4) and the front suspension assembly being mounted on the bottom of the frame, two middle axle assemblies, two middle wheel assemblies (5) and two middle suspension assemblies being mounted on the bottom of the first connecting frame (3), one of the middle axle assemblies being provided with a power mechanism drivingly connected to one of the middle wheel assemblies (5), the other of the middle axle assemblies being provided with a gear linkage mechanism drivingly connected to the other of the middle wheel assemblies (5), and a telescopic shaft being drivingly connected between the power mechanism and the gear linkage mechanism; The semitrailer assembly comprises a second frame (6), a second connecting frame (7) is fixedly provided at one end of the second frame (6), the second connecting frame (7) is detachably connected to the first connecting frame (3), and a plurality of rear axle assemblies, a plurality of rear wheel assemblies (8) and a plurality of rear suspension assemblies are installed at the bottom of the second frame (6).

2. A multi-axle suspension mobile vehicle according to claim 1, characterized in that: The front axle assembly comprises: A first vehicle axle (9) is arranged at the bottom of the first vehicle frame (2), two first fixing frames (10) are fixedly arranged at the bottom of the first vehicle axle (9), and each of the first fixing frames (10) is fixedly connected to the front suspension assembly; Two first supporting oil cylinders (11) have one end fixedly connected to the first fixing frame (10) and the other end fixedly connected to one side of the first vehicle frame (2).

3. The multi-axle suspension mobile vehicle according to claim 2, characterized in that: The front suspension assembly comprises: A first connecting plate (12), both ends of which are fixedly provided with first spring plates (13), each of which is respectively fixedly provided at the bottom of the first fixing frame (10), and each of which is hingedly provided with a first support frame (14) at one end away from the first connecting plate (12), and each of which is fixedly connected to the first vehicle frame (2); The bottoms of the two first load-bearing airbags (15) are respectively fixed on the first spring plate (13), and the top of each first load-bearing airbag (15) is respectively fixedly connected to one side of the first vehicle frame (2).

4. The multi-axle suspension mobile vehicle according to claim 1, characterized in that: The middle axle assembly comprises: A second vehicle axle (16) is arranged at the bottom of the first connecting frame (3), two second fixing frames (17) are fixedly arranged at the bottom of the second vehicle axle (16), and each of the second fixing frames (17) is fixedly connected to the middle suspension assembly; Two second supporting oil cylinders (18) have one end fixedly connected to the first fixing frame (10) and the other end fixedly connected to one side of the first vehicle frame (2).

5. The multi-axle suspension mobile vehicle according to claim 4, characterized in that: The middle suspension assembly comprises: A second connecting plate (19), both ends of which are fixedly provided with second spring plates (20), each of which is respectively fixedly provided at the bottom of the second fixing frame (17), and each of which is hingedly provided with a second support frame (21) at one end of the second spring plate (20) away from the second connecting plate (19), and each of which is fixedly connected with the first connecting frame (3); The bottoms of the two second load-bearing airbags (22) are respectively fixed on the second spring plate (20), and the top of each second load-bearing airbag (22) is respectively fixedly connected to one side of the first connecting frame (3).

6. The multi-axle suspension mobile vehicle according to claim 1, characterized in that: The rear axle assembly comprises: A third axle (23) is arranged at the bottom of the second frame (6), and the rear suspension assembly is fixed on the third axle (23); Two air suspension systems (24) are both installed on the third axle (23).

7. The multi-axle suspension mobile vehicle according to claim 6, characterized in that: The rear suspension assembly comprises: Two fastening assemblies (25), one end of each of which is fixedly mounted on the third vehicle axle (23), and the other end of each of which is fixedly mounted with a leaf spring (26), both ends of each leaf spring (26) being clamped with a third support frame (27), and each of the third support frames (27) being fixedly connected to one side of the second vehicle frame (6); Two lifting cylinders (28) have one end each hinged to the bottom of the fastening assembly (25) and the other end each hinged to the bottom of a third support frame (27).

8. The multi-axle suspension mobile vehicle according to claim 7, characterized in that: The fastening assembly (25) comprises: A bottom plate (29) is arranged at the bottom of the third axle (23), and one end of the bottom plate (29) is hinged to one end of the lifting cylinder (28); A nesting plate (30) is arranged at the bottom of the third axle (23), and two first limiting convex plates (31) for clamping two sides of the third axle (23) are fixedly arranged on the top of the nesting plate (30), and the bottom of the nesting plate (30) is arranged in a close fit with the top of the bottom plate (29); A limiting fixing plate (32) is arranged on the top of the third axle (23); two second limiting convex plates (33) for clamping two sides of the third axle (23) are fixedly arranged on the bottom of the limiting fixing plate (32); and the bottom of the leaf spring (26) is arranged on the top of the limiting fixing plate (32); A top plate (34) is arranged on the top of the leaf spring (26), and two U-shaped protrusions (35) are fixedly arranged on the top of the top plate (34); Two U-shaped bolts (36) are respectively sleeved on the U-shaped protrusions (35), and both ends of each U-shaped bolt (36) pass through the top plate (34), the limiting fixing plate, the nesting plate (30) and the bottom plate (29) so that the rear suspension assembly is fixed on the third axle (23).

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