New energy electric heavy truck frame assembly and assembling method thereof

Abstract

The invention provides a new energy electric heavy truck frame assembly and an assembling method thereof.The new energy electric heavy truck frame assembly comprises a truck frame body, truck frame mounting cross beams, a left battery frame and a right battery frame, and the multiple truck frame mounting cross beams are arranged between the middle of a left longitudinal beam of the truck frame body and the middle of a right longitudinal beam of the truck frame body; the frame mounting cross beams are distributed in the length direction of the frame main body; the left battery frame is arranged on the left side face of the middle of the left longitudinal beam, and the right battery frame is arranged on the right side face of the middle of the right longitudinal beam and is symmetrical to the left battery frame. The frame assembly can be conveniently assembled, meanwhile, during assembling, the assembling precision of the frame assembly can be effectively improved through the cross beam installation auxiliary tool and the frame installation auxiliary tool, the assembling time is saved, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicles, and in particular relates to a new energy electric heavy truck frame assembly and an assembly method thereof. Background Art

[0002] In the prior art, after new energy heavy-duty trucks are produced domestically, they go through review, testing and other links, and are registered in accordance with regulations. Then, they are disassembled and the parts are sent to the export destination for assembly. In order to facilitate the smooth assembly of parts, the holes on the frame are generally expanded from the original circular holes to waist-shaped holes or their apertures are increased, but the assembly accuracy is poor. In order to facilitate export, the frame assembly of new energy heavy-duty trucks also needs to be assembled after being disassembled into parts. Therefore, how to design a new energy electric heavy-duty truck frame assembly and its assembly method so that the frame assembly is easy to assemble and can better improve the assembly accuracy of the frame assembly has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0003] The purpose of the present invention is to provide a new energy electric heavy truck frame assembly and an assembly method thereof to solve the above-mentioned technical problems in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A new energy electric heavy truck frame assembly includes a frame body, a frame mounting crossbeam, a left battery frame, and a right battery frame. A plurality of frame mounting crossbeams are arranged between the middle of the left longitudinal beam of the frame body and the middle of the right longitudinal beam of the frame body, and each of the frame mounting crossbeams is distributed along the length direction of the frame body; the left battery frame is arranged on the left side surface of the middle part of the left longitudinal beam, and the right battery frame is arranged on the right side surface of the middle part of the right longitudinal beam and is symmetrically arranged with the left battery frame.

[0006] Preferably, there are four frame mounting cross beams, and the frame mounting cross beams are evenly distributed along the length direction of the frame body; there is a carrying space for carrying the middle part of the chocolate battery pack between two adjacent frame mounting cross beams; there are three carrying spaces on the left side of the chocolate battery pack on the left battery frame, and there are three carrying spaces on the right side of the chocolate battery pack on the right battery frame.

[0007] Preferably, the frame body is a structure with a uniform cross-section and is wide at the front and narrow at the rear.

[0008] A new energy electric heavy truck frame assembly assembly method, comprising the following steps:

[0009] Flip the frame body so that the lower side surfaces of the left and right longitudinal beams are located at the top; place the crossbeam installation auxiliary tooling at the middle of the left and right longitudinal beams, and position and fix the lower side surfaces of each frame mounting crossbeam on the crossbeam installation auxiliary tooling;

[0010] The position of each frame mounting cross beam between the middle of the left longitudinal beam and the right longitudinal beam is adjusted by the cross beam mounting auxiliary tooling, so that the mounting holes on each frame mounting cross beam are aligned with the corresponding holes on the left longitudinal beam and the right longitudinal beam, and the left ends of each frame mounting cross beam are respectively fixed to the left longitudinal beam by fasteners, and the right ends of each frame mounting cross beam are respectively fixed to the right longitudinal beam; then, the cross beam mounting auxiliary tooling is removed;

[0011] Position the frame installation auxiliary tooling on the frame mounting crossbeam, position and fix the left battery frame on the left side of the frame installation auxiliary tooling, so that the left battery frame is located on the left side of the left longitudinal beam; position and fix the right battery frame on the right side of the frame installation auxiliary tooling, so that the right battery frame is located on the right side of the right longitudinal beam;

[0012] Through the frame installation auxiliary tooling, adjust the positions of the left battery frame and the right battery frame, align the installation holes on the left battery frame with the corresponding holes on the left longitudinal beam, and use fasteners to fix the left battery frame to the left longitudinal beam; align the installation holes on the right battery frame with the corresponding holes on the right longitudinal beam, and use fasteners to fix the right battery frame to the right longitudinal beam, and then remove the frame installation auxiliary tooling.

[0013] Preferably, the beam installation auxiliary tooling includes a lifting ear assembly, a left supporting longitudinal beam, a right supporting longitudinal beam and a positioning beam, the left supporting longitudinal beam is used to be aligned with the left longitudinal beam, and the right supporting longitudinal beam is used to be aligned with the right longitudinal beam; the lifting ear assembly is arranged at the middle position between the left supporting longitudinal beam and the right supporting longitudinal beam, and a plurality of positioning beams are arranged between the left supporting longitudinal beam and the right supporting longitudinal beam, and each positioning beam corresponds to each frame mounting beam one by one; the lower side surface of the positioning beam is used to fit with the lower side surface of the frame mounting beam, and a positioning hole and a locking bolt are arranged on the positioning beam, and a positioning function portion for cooperating with the positioning hole and a through hole for the locking bolt to pass through are arranged on the lower side surface of the frame mounting beam.

[0014] Preferably, the lifting lug assembly comprises a lifting lug and a cross-shaped mounting frame, the cross-shaped mounting frame is arranged between the middle positions of the left supporting longitudinal beam and the right supporting longitudinal beam, and the lifting lug is arranged at the middle position of the cross-shaped mounting frame.

[0015] Preferably, the left end of the positioning beam is connected to the left supporting longitudinal beam through an elastic component, and the elastic component includes a spring pin, a spring, and a limit plate. The limit plate is arranged on the upper side surface of the left supporting longitudinal beam, and the left end of the positioning beam is located below the left supporting longitudinal beam; the left supporting longitudinal beam, the left end of the positioning beam and the limit plate are relatively provided with through holes for the spring pin to pass through, and the lower end of the spring pin is provided with a limit plate for blocking the lower side surface of the positioning beam, and the spring is arranged between the limit plate and the limit plate.

[0016] Preferably, the right end of the positioning beam is connected to the right supporting longitudinal beam through the elastic component.

[0017] Preferably, the frame installation auxiliary tooling includes a support frame, a first lifting ear, a second lifting ear and a plurality of connecting beams, the first lifting ear and the second lifting ear are relatively arranged on the support frame; each of the connecting beams corresponds to each of the frame mounting beams one by one, the lower side surface of the connecting beam is used to fit with the lower side surface of the frame mounting beam, the middle position of the connecting beam is provided with a first positioning portion for cooperating with the positioning structure on the frame mounting beam, the left end of the connecting beam is provided with a second positioning portion for cooperating with the positioning structure on the lower side surface of the left battery frame, and a second connecting hole opposite to the first connecting hole provided on the lower side surface of the left battery frame; the right end of the connecting beam is provided with a third positioning portion for cooperating with the positioning structure on the lower side surface of the right battery frame, and a fourth connecting hole opposite to the third connecting hole provided on the lower side surface of the right battery frame.

[0018] Preferably, the support frame includes a reinforcing crossbeam, a cross beam, a first longitudinal beam, a second longitudinal beam, a third longitudinal beam and a fourth longitudinal beam which are horizontally arranged, the first longitudinal beam and the second longitudinal beam are opposite to the left longitudinal beam and the right longitudinal beam respectively, the third longitudinal beam is arranged on the left side of the first longitudinal beam, the fourth longitudinal beam is arranged on the right side of the third longitudinal beam, the third longitudinal beam and the fourth longitudinal beam are symmetrically arranged, the lower side surfaces of the third longitudinal beam and the fourth longitudinal beam are respectively connected to the upper side surfaces of the left and right ends of the connecting crossbeam; the first longitudinal beam and the third longitudinal beam and the second longitudinal beam and the fourth longitudinal beam are respectively connected by a plurality of the reinforcing cross beams; three cross beams are evenly arranged in sequence from front to back between the first longitudinal beam and the second longitudinal beam, the first lifting lug is arranged at the middle position of the cross beam located at the front, and the second lifting lug is arranged at the middle position of the cross beam located at the rear.

[0019] The beneficial effects of the present invention are:

[0020] The new energy electric heavy truck frame assembly and assembly method thereof of the present invention can facilitate assembly of the frame assembly. Simultaneously, during assembly, the use of crossbeam installation auxiliary tooling and frame installation auxiliary tooling can effectively improve the assembly accuracy of the frame assembly, save assembly time, and improve assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present invention in detail in conjunction with the drawings, wherein

[0022] Figure 1 A schematic diagram of a new energy electric heavy truck frame assembly provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a new energy electric heavy truck frame assembly provided by an embodiment of the present invention when in use;

[0024] Figure 3 A front view of a frame body provided by an embodiment of the present invention;

[0025] Figure 4 A top view of a vehicle frame body and a vehicle frame mounting crossbeam connected to each other provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a chocolate battery pack provided by an embodiment of the present invention being assembled with a left battery frame and a right battery frame;

[0027] Figure 6 A schematic diagram of the upper side of a frame mounting crossbeam provided in an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the lower side of a frame mounting crossbeam provided in an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of the crossbeam installation auxiliary tooling provided by an embodiment of the present invention when in use;

[0030] Fig. 9 An axonometric view of a beam installation auxiliary tooling provided in an embodiment of the present invention;

[0031] Fig.10 A top view of a beam installation auxiliary tooling provided in an embodiment of the present invention;

[0032] Fig.11 A schematic diagram of an elastic component provided by an embodiment of the present invention when in use;

[0033] Fig.12 A schematic diagram of an elastic component provided by an embodiment of the present invention when it is not connected to the left supporting longitudinal beam;

[0034] Fig.13 A schematic diagram of an elastic component provided by an embodiment of the present invention;

[0035] Fig.14 A schematic diagram of the lower side of the crossbeam installation auxiliary tooling provided in an embodiment of the present invention;

[0036] Fig.15 A schematic diagram of a left battery frame provided by an embodiment of the present invention;

[0037] Fig.16 A schematic diagram of a right battery frame provided by an embodiment of the present invention;

[0038] Fig.17 A schematic diagram of the frame installation auxiliary tooling provided by an embodiment of the present invention when in use;

[0039] Fig.18 An axonometric view of a frame installation auxiliary tooling provided in an embodiment of the present invention;

[0040] Fig.19 A top view of the frame installation auxiliary tooling provided in an embodiment of the present invention.

[0041] Markings in the accompanying drawings:

[0042] 11. Left longitudinal beam, 12. Right longitudinal beam, 13. Frame mounting connection hole,

[0043] 14. Lower side of left longitudinal beam; 21. Left battery frame; 22. Right battery frame;

[0044] 23. Positioning structure, 24. Mounting hole on the left battery frame connected to the left longitudinal beam,

[0045] 25. Fixing holes for connecting to chocolate battery packs.

[0046] 26. Mounting hole on the right battery frame connected to the right longitudinal beam;

[0047] 31. Frame mounting beam,

[0048] 32. The mounting holes on the frame mounting crossbeam for connecting with the right longitudinal beam.

[0049] 33. The mounting holes on the frame mounting crossbeam for connecting with the left longitudinal beam.

[0050] 34. Positioning function part; 35. Anti-misinstallation arrow mark; 41. Chocolate battery pack;

[0051] 42. T-type locking structure; 51. Auxiliary tooling for beam installation; 52. Lifting lugs;

[0052] 53. Cross-shaped mounting frame, 54. Left supporting longitudinal beam,

[0053] 55. Right supporting longitudinal beam, 56. Positioning hole, 57. Elastic component,

[0054] 571, limit plate, 572, limit plate, 573, spring pin, 574, spring,

[0055] 575, fixing bolt, 58, positioning beam, 59, locking bolt;

[0056] 61. Frame installation auxiliary tooling, 611. First longitudinal beam, 62. Second longitudinal beam,

[0057] 63, third longitudinal beam, 64, fourth longitudinal beam, 65, first lifting eye, 66, second lifting eye,

[0058] 67. Strengthening beams, 68. Cross beams, 69. Connecting beams,

[0059] 691, first positioning portion, 692, second positioning portion, 693, third positioning portion,

[0060] 694, auxiliary positioning pin, 695, spring main positioning pin, 696, second connecting hole,

[0061] 697. The fourth connecting hole. DETAILED DESCRIPTION

[0062] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0063] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0064] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0065] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0066] like Figures 1 to 19As shown, an embodiment of the present invention provides a new energy electric heavy truck frame assembly, which includes a frame body, a frame mounting crossbeam 31, a left battery frame 21, and a right battery frame 22. A plurality of frame mounting crossbeams 31 are arranged between the middle of the left longitudinal beam 11 of the frame body and the middle of the right longitudinal beam 12 of the frame body, and each of the frame mounting crossbeams 31 is distributed along the length direction of the frame body; the left battery frame 21 is arranged on the left side surface of the middle part of the left longitudinal beam 11, and the right battery frame 22 is arranged on the right side surface of the middle part of the right longitudinal beam 12 and is symmetrically arranged with the left battery frame 21.

[0067] In one embodiment, there are four frame mounting cross beams 31, and each frame mounting cross beam is evenly distributed along the length direction of the frame body; there is a bearing space for bearing the middle part of the chocolate battery pack between two adjacent frame mounting cross beams; there are three bearing spaces for bearing the left side of the chocolate battery pack on the left battery frame 21, and there are three bearing spaces for bearing the right side of the chocolate battery pack on the right battery frame 22. With this solution, the chocolate battery pack can be fixed to the frame assembly more firmly by using the fixing holes on the left and right battery frames and the T-shaped locking structure 42 on the chocolate battery pack.

[0068] It can be preferred, such as Figure 3 and Figure 4 As shown, the frame body is a structure of uniform cross-section, which is wide at the front and narrow at the rear, so that the frame is easier to process, has uniform force when heavily loaded, and is easier to bundle and fix during transportation.

[0069] The embodiment of the present invention also provides a new energy electric heavy truck frame assembly assembly method, which includes the following steps:

[0070] Flip the frame body so that the lower side surfaces of the left longitudinal beam 11 and the right longitudinal beam 12 are located at the top; place the crossbeam installation auxiliary tooling 51 in the middle of the left longitudinal beam and the right longitudinal beam, and position and fix the lower side surfaces of each frame mounting crossbeam 31 on the crossbeam installation auxiliary tooling 51 respectively;

[0071] The position of each frame mounting cross beam 31 between the middle of the left longitudinal beam and the right longitudinal beam is adjusted by the cross beam mounting auxiliary tooling 51, so that the mounting holes on each frame mounting cross beam for connecting with the left and right longitudinal beams are aligned with the corresponding holes on the left and right longitudinal beams, and the left ends of each frame mounting cross beam are respectively fixed to the left longitudinal beam, and the right ends of each frame mounting cross beam are respectively fixed to the right longitudinal beam by fasteners; then, the cross beam mounting auxiliary tooling is removed;

[0072] Position the frame installation auxiliary tooling 61 on the frame mounting crossbeam, position and fix the left battery frame 21 on the left side of the frame installation auxiliary tooling, so that the left battery frame is located on the left side of the left longitudinal beam; position and fix the right battery frame 22 on the right side of the frame installation auxiliary tooling, so that the right battery frame is located on the right side of the right longitudinal beam;

[0073] Through the frame installation auxiliary tooling 61, adjust the positions of the left battery frame and the right battery frame so that the installation hole 24 on the left battery frame used to connect with the left longitudinal beam is aligned with the corresponding hole on the left longitudinal beam, fix the frame installation auxiliary tooling 61 to the frame mounting crossbeam, and use fasteners to fix the left battery frame to the left longitudinal beam through the above-mentioned hole; at the same time, align the installation hole 26 on the right battery frame used to connect with the right longitudinal beam with the corresponding hole on the right longitudinal beam, and use fasteners to fix the right battery frame to the right longitudinal beam, and then remove the frame installation auxiliary tooling.

[0074] like Figures 8 to 14 As shown, the beam installation auxiliary tooling 51 includes a lifting ear assembly, a left supporting longitudinal beam 54, a right supporting longitudinal beam 55 and a positioning beam 58, the left supporting longitudinal beam is used to be aligned with the left longitudinal beam, and the right supporting longitudinal beam is used to be aligned with the right longitudinal beam; the lifting ear assembly is arranged at the middle position between the left supporting longitudinal beam and the right supporting longitudinal beam, and a plurality of positioning beams 58 are arranged between the left supporting longitudinal beam and the right supporting longitudinal beam, and each positioning beam corresponds to each frame mounting beam one by one; the lower side surface of the positioning beam is used to fit with the lower side surface of the frame mounting beam, and the positioning beam is provided with a positioning hole 56 and a locking bolt 59, and the lower side surface of the frame mounting beam is provided with a positioning action portion 34 for cooperating with the positioning hole and a through hole for the locking bolt to pass through. By adopting this solution, the positioning between the beam installation auxiliary tooling 51 and the frame mounting beam can be better, thereby ensuring the coaxiality of the installation holes on the frame mounting beam with the corresponding installation holes on the left longitudinal beam and the right longitudinal beam, thereby facilitating quick installation and improving assembly accuracy.

[0075] Specifically, the lifting ear assembly includes a lifting ear 52 and a cross-shaped mounting frame 53. The cross-shaped mounting frame 53 is arranged between the middle positions of the left supporting longitudinal beam and the right supporting longitudinal beam, and the lifting ear 52 is arranged at the middle position of the cross-shaped mounting frame, so that the structure of the lifting ear assembly is relatively simple.

[0076] Preferably, the left end of the positioning beam is connected to the left supporting longitudinal beam through an elastic component 57, and the elastic component includes a spring pin 573, a spring 574, and a limit plate 571. The limit plate 571 is arranged on the upper side of the left supporting longitudinal beam 54, and the left end of the positioning beam is located below the left supporting longitudinal beam; the left supporting longitudinal beam, the left end of the positioning beam and the limit plate are relatively provided with through holes for the spring pin to pass through, and the lower end of the spring pin 573 is provided with a limit plate 572 for blocking the lower side of the positioning beam, and the spring 574 is arranged between the limit plate and the limit plate. Specifically, the right end of the positioning beam is also connected to the right supporting longitudinal beam through the elastic component. With this solution, when the lower side surfaces of each limit plate come into contact with the lower side surfaces of the left longitudinal beam and the right longitudinal beam respectively, the spring 574 will be compressed, the spring pin 573 will move upward, and the limit plate will gradually fit with the lower side surfaces of the left and right longitudinal beams with a damping feeling until the spring is compressed to the limit position, thereby ensuring the parallelism of the frame longitudinal beams and further ensuring a better assembly accuracy of the frame assembly.

[0077] Specifically, the left supporting longitudinal beam, the right supporting longitudinal beam and the cross-shaped mounting frame 53 can all be rectangular tubular beams to improve the overall strength of the crossbeam installation auxiliary tooling; the limit plate can be fixed to the left supporting longitudinal beam and the right supporting longitudinal beam by fixing bolts 575. When assembling the frame mounting crossbeam and the left and right battery frames, the assembly is performed after the frame body is turned over 180 degrees, that is, at this time, the lower side of the left and right longitudinal beams are located at the top, the lower side of the frame mounting crossbeam is also located at the top, and the lower side of the left battery frame and the right battery frame are also located at the top. An anti-misinstallation arrow mark 35 can be provided on the frame mounting crossbeam, and the arrow must point to the direction of the front of the vehicle during installation to avoid misinstallation. The above-mentioned positioning hole and positioning action part can both be rectangular holes, and the positioning of the two can be achieved by passing through the connecting bolts thereof; the positioning action part can also be a positioning protrusion. The structures of the two frame mounting crossbeams located in the middle can be the same; the structure of the left battery frame is the same as that of the right battery frame.

[0078] like Figures 17 to 19As shown, the frame installation auxiliary tooling 61 includes a support frame, a first lifting ear 65, a second lifting ear 66 and a plurality of connecting beams 69, the first lifting ear and the second lifting ear are arranged on the support frame relatively; each connecting beam 69 corresponds to each frame mounting beam 31 one by one, the lower side surface of the connecting beam 69 is used to fit with the lower side surface of the frame mounting beam 31, and the middle position of the connecting beam 69 is provided with a first positioning portion 691 for cooperating with the positioning structure on the frame mounting beam 31, the left end of the connecting beam 69 is provided with a second positioning portion 692 for cooperating with the positioning structure on the lower side surface of the left battery frame, and a second connecting hole 696 opposite to the first connecting hole arranged on the lower side surface of the left battery frame; the right end of the connecting beam is provided with a third positioning portion 693 for cooperating with the positioning structure on the lower side surface of the right battery frame, and a fourth connecting hole 697 opposite to the third connecting hole arranged on the lower side surface of the right battery frame. By adopting this solution, the first positioning portion can be used to accurately position the frame auxiliary tooling on the frame mounting cross beam, and the second positioning portion, the third positioning portion and the various connecting holes can be used to accurately position and fix the left battery frame and the right battery frame on the frame auxiliary tooling, respectively. Therefore, during assembly, it is easy to ensure the coaxiality of the mounting holes on the left battery frame and the right battery frame with the corresponding mounting holes on the left and right longitudinal beams, thereby improving assembly efficiency and assembly accuracy.

[0079] Specifically, the support frame includes a reinforcing crossbeam 67, a cross beam 68, a horizontally arranged first longitudinal beam 611, a second longitudinal beam 62, a third longitudinal beam 63 and a fourth longitudinal beam 64, the first longitudinal beam and the second longitudinal beam 62 are opposite to the left longitudinal beam and the right longitudinal beam respectively, the third longitudinal beam is arranged on the left side of the first longitudinal beam 611, and the fourth longitudinal beam is arranged on the right side of the third longitudinal beam, the third longitudinal beam and the fourth longitudinal beam are symmetrically arranged, and the lower side surfaces of the third longitudinal beam and the fourth longitudinal beam are respectively connected to the upper side surfaces of the left and right ends of the connecting crossbeam 69; the first longitudinal beam 611 and the third longitudinal beam 63 and the second longitudinal beam 62 and the fourth longitudinal beam 64 are respectively connected by a plurality of the reinforcing cross beams 67; three cross beams 68 are evenly arranged in sequence from front to back between the first longitudinal beam and the second longitudinal beam, the first lifting lug 65 is arranged at the middle position of the cross beam 68 located at the front, and the second lifting lug 66 is arranged at the middle position of the cross beam 68 located at the rear. By adopting this solution, the support frame has better strength and can well meet the use requirements.

[0080] Preferably, the positioning parts arranged on the connecting beam can be used in combination with auxiliary positioning pins 694, spring main positioning pins 695 and positioning holes to effectively improve the positioning accuracy; the positioning holes can be rectangular holes; the reinforcing beams, cross beams, first longitudinal beams, second longitudinal beams, third longitudinal beams and fourth longitudinal beams can all be rectangular tubular beams.

[0081] The new energy electric heavy truck frame assembly and assembly method thereof of the present invention can facilitate the assembly of the frame assembly. At the same time, during online assembly, the parallelism of the left and right longitudinal beams, the coaxiality of the mounting holes between the frame mounting crossbeam and the left and right longitudinal beams, the parallelism and flatness of the frame and battery frame installation, and the coaxiality of the mounting holes between the left and right battery frames and the left and right longitudinal beams can be ensured by using the crossbeam installation auxiliary tooling and the frame installation auxiliary tooling. This makes it easy to smoothly complete the assembly of the frame assembly, saves assembly time, improves assembly efficiency, and can effectively improve the assembly accuracy of the frame assembly.

[0082] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A new energy electric heavy truck frame assembly, characterized in that: It includes a frame body, a frame mounting crossbeam, a left battery frame, and a right battery frame. A plurality of frame mounting crossbeams are arranged between the middle of the left longitudinal beam of the frame body and the middle of the right longitudinal beam of the frame body, and each of the frame mounting crossbeams is distributed along the length direction of the frame body; the left battery frame is arranged on the left side surface of the middle part of the left longitudinal beam, and the right battery frame is arranged on the right side surface of the middle part of the right longitudinal beam and is symmetrically arranged with the left battery frame.

2. The new energy electric heavy truck frame assembly according to claim 1 is characterized in that: There are four frame mounting cross beams, and each of the frame mounting cross beams is evenly distributed along the length direction of the frame body; there is a carrying space for carrying the middle part of the chocolate battery pack between two adjacent frame mounting cross beams; there are three carrying spaces on the left side of the chocolate battery pack on the left battery frame, and there are three carrying spaces on the right side of the chocolate battery pack on the right battery frame.

3. The new energy electric heavy truck frame assembly according to claim 1 is characterized in that: The frame body is a structure with a uniform cross-section and is wide at the front and narrow at the rear.

4. A new energy electric heavy truck frame assembly method, characterized in that: It includes the following steps: Flip the frame body so that the lower side surfaces of the left and right longitudinal beams are located at the top; place the crossbeam installation auxiliary tooling at the middle of the left and right longitudinal beams, and position and fix the lower side surfaces of each frame mounting crossbeam on the crossbeam installation auxiliary tooling; The position of each frame mounting cross beam between the middle of the left longitudinal beam and the right longitudinal beam is adjusted by the cross beam mounting auxiliary tooling, so that the mounting holes on each frame mounting cross beam are aligned with the corresponding holes on the left longitudinal beam and the right longitudinal beam, and the left ends of each frame mounting cross beam are respectively fixed to the left longitudinal beam by fasteners, and the right ends of each frame mounting cross beam are respectively fixed to the right longitudinal beam; then, the cross beam mounting auxiliary tooling is removed; Position the frame installation auxiliary tooling on the frame mounting crossbeam, position and fix the left battery frame on the left side of the frame installation auxiliary tooling, so that the left battery frame is located on the left side of the left longitudinal beam; position and fix the right battery frame on the right side of the frame installation auxiliary tooling, so that the right battery frame is located on the right side of the right longitudinal beam; Through the frame installation auxiliary tooling, adjust the positions of the left battery frame and the right battery frame, align the installation holes on the left battery frame with the corresponding holes on the left longitudinal beam, and use fasteners to fix the left battery frame to the left longitudinal beam; align the installation holes on the right battery frame with the corresponding holes on the right longitudinal beam, and use fasteners to fix the right battery frame to the right longitudinal beam, and then remove the frame installation auxiliary tooling.

5. The new energy electric heavy truck frame assembly method according to claim 4 is characterized in that: The beam installation auxiliary tooling includes a lifting ear assembly, a left supporting longitudinal beam, a right supporting longitudinal beam and a positioning beam, the left supporting longitudinal beam is used to be aligned with the left longitudinal beam, and the right supporting longitudinal beam is used to be aligned with the right longitudinal beam; the lifting ear assembly is arranged at the middle position between the left supporting longitudinal beam and the right supporting longitudinal beam, and a plurality of positioning beams are arranged between the left supporting longitudinal beam and the right supporting longitudinal beam, and each positioning beam corresponds to each frame mounting beam one by one; the lower side surface of the positioning beam is used to fit with the lower side surface of the frame mounting beam, and a positioning hole and a locking bolt are arranged on the positioning beam, and a positioning function portion for cooperating with the positioning hole and a through hole for the locking bolt to pass through are arranged on the lower side surface of the frame mounting beam.

6. The new energy electric heavy truck frame assembly method according to claim 5 is characterized in that: The lifting lug assembly comprises a lifting lug and a cross-shaped mounting frame, wherein the cross-shaped mounting frame is arranged between the middle positions of the left supporting longitudinal beam and the right supporting longitudinal beam, and the lifting lug is arranged at the middle position of the cross-shaped mounting frame.

7. The new energy electric heavy truck frame assembly method according to claim 5 is characterized in that: The left end of the positioning beam is connected to the left supporting longitudinal beam through an elastic component, and the elastic component includes a spring pin, a spring, and a limit plate. The limit plate is arranged on the upper side surface of the left supporting longitudinal beam, and the left end of the positioning beam is located below the left supporting longitudinal beam; the left supporting longitudinal beam, the left end of the positioning beam and the limit plate are relatively provided with through holes for the spring pin to pass through, and the lower end of the spring pin is provided with a limit plate for blocking the lower side surface of the positioning beam, and the spring is arranged between the limit plate and the limit plate.

8. The new energy electric heavy truck frame assembly method according to claim 7 is characterized in that: The right end of the positioning cross beam is connected to the right supporting longitudinal beam through the elastic component.

9. The method for assembling a new energy electric heavy truck frame assembly according to any one of claims 4 to 8, characterized in that: The frame installation auxiliary tooling includes a support frame, a first lifting ear, a second lifting ear and a plurality of connecting beams, the first lifting ear and the second lifting ear are relatively arranged on the support frame; each of the connecting beams corresponds to each of the frame mounting beams one by one, the lower side surface of the connecting beam is used to fit with the lower side surface of the frame mounting beam, the middle position of the connecting beam is provided with a first positioning portion for cooperating with the positioning structure on the frame mounting beam, the left end of the connecting beam is provided with a second positioning portion for cooperating with the positioning structure on the lower side surface of the left battery frame, and a second connecting hole opposite to the first connecting hole provided on the lower side surface of the left battery frame; the right end of the connecting beam is provided with a third positioning portion for cooperating with the positioning structure on the lower side surface of the right battery frame, and a fourth connecting hole opposite to the third connecting hole provided on the lower side surface of the right battery frame.

10. The new energy electric heavy truck frame assembly assembly method according to claim 9 is characterized in that: The support frame includes a reinforcing crossbeam, a cross beam, a first longitudinal beam, a second longitudinal beam, a third longitudinal beam and a fourth longitudinal beam which are horizontally arranged, the first longitudinal beam and the second longitudinal beam are opposite to the left longitudinal beam and the right longitudinal beam respectively, the third longitudinal beam is arranged on the left side of the first longitudinal beam, and the fourth longitudinal beam is arranged on the right side of the third longitudinal beam, the third longitudinal beam and the fourth longitudinal beam are symmetrically arranged, the lower side surfaces of the third longitudinal beam and the fourth longitudinal beam are respectively connected to the upper side surfaces of the left and right ends of the connecting crossbeam; the first longitudinal beam and the third longitudinal beam and the second longitudinal beam and the fourth longitudinal beam are respectively connected by a plurality of the reinforcing cross beams; three cross beams are evenly arranged in sequence from front to back between the first longitudinal beam and the second longitudinal beam, the first lifting lug is arranged at the middle position of the cross beam located at the front, and the second lifting lug is arranged at the middle position of the cross beam located at the rear.

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