CN212828678U

CN212828678U - Reinforced truck frame of heavy truck

Info

Publication number: CN212828678U
Application number: CN202021191627.7U
Authority: CN
Inventors: 肖才军; 肖权诗; 汤开宏
Original assignee: Shiyan Maoyu Industry And Trade Co ltd
Current assignee: Shiyan Maoyu Industry And Trade Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-30
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a truck strengthens car frame at least including two longerons of parallel arrangement and the front beam who sets up respectively between the longeron, the middle cross beam, the rear end rail includes first crossbeam, second crossbeam and slowly-releasing portion, slowly-releasing portion includes first slowly-releasing layer and second slowly-releasing layer, through improving the rear end rail, restraint cooperation through first crossbeam and second crossbeam, make when the rear end rail receives the impact, produce the ascending restraint force of frame axial, and set up slowly-releasing portion between first crossbeam and the second crossbeam after the improvement, when the anticollision resistance to deformation ability of frame rear end rail improves, solve the problem that the rigid collision that equipment cooperation formula rear end rail probably produced easily became invalid, decompose and retrain the frame axial through slowly-releasing layer progressively with the effect, further improve the integrity and the security of frame.

Description

Reinforced truck frame of heavy truck

Technical Field

The utility model relates to an automobile frame technical field, in particular to truck reinforces automobile frame.

Background

The common load-carrying vehicle frame is basically a boundary beam type vehicle frame, the boundary beam type vehicle frame mainly comprises two longitudinal beams and a plurality of cross beams, the longitudinal beams are mostly in a groove shape, and partial load-carrying vehicles are also provided with auxiliary beams above the longitudinal beams or steel plates are stacked on two sides of the longitudinal beams as large transport vehicles, so that the overall strength of the vehicle frame is enhanced. The arrangement of the cross beams on the vehicle is more, and the longitudinal beams are vertically riveted or welded, but the problems of weak anti-collision and impact-resistant performance, poor structural stability, high cost, unsuitability for local part disassembly and replacement and the like easily exist due to the large load of the load-carrying vehicle frame.

SUMMERY OF THE UTILITY MODEL

The embodiments of the present application provide a truck reinforced vehicle frame that overcomes or at least partially solves the above-mentioned problems.

In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

the utility model provides a lorry reinforces car frame, includes two longerons of parallel arrangement and sets up respectively front beam, centre sill, rear frame member between the longeron, the front frame member sets up the front end of longeron, the centre sill sets up the middle part of longeron, the rear frame member sets up the rear end of longeron, the rear frame member includes:

the first cross beam is arranged between the rear ends of the longitudinal beams, and the middle part of the first cross beam extends towards two sides along the length direction perpendicular to the first cross beam to form an arc-shaped protruding part;

the second cross beam is clamped and arranged on the outer side of the rear end of the longitudinal beam along the direction of the longitudinal beam so as to be coated on the outer side of the first cross beam, the middle part of the second cross beam extends to the direction far away from the first cross beam to form an arc-shaped concave part, and an arc-shaped slow release space is formed between the arc-shaped concave part and the arc-shaped convex part; and

the slow release part is arranged in the slow release space and comprises a first slow release layer and a second slow release layer, the first slow release layer is arranged on the outer surface of the second cross beam, the arc protruding part is close to the outer surface of the second cross beam, the surface of the first slow release layer extends to the slow release space to form a plurality of clamping parts arranged at intervals, the clamping parts are formed with inwards-recessed clamping cavities in the direction of the first slow release layer, the second slow release layer is arranged on the surface of the first cross beam, the arc recessed part is close to the surface of the second cross beam, the surface of the second slow release layer extends to the slow release space to form a plurality of embedding parts, the embedding parts are matched with the clamping parts, and the embedding parts are clamped in the clamping cavities.

Furthermore, the clamping part is provided with first extending parts which are symmetrically arranged, the clamping cavity is formed between the first extending parts, the outer end part of the first extending part extends into the clamping cavity to form a second extending part, and a trend of closing the clamping cavity is formed between the corresponding second extending parts.

Furthermore, an inclination angle is formed between the first extension part and the corresponding second extension part, and the inclination angle is 30-60 degrees.

Still further, the outer end of the second extension has a circular arc segment.

Furthermore, the connection part of the second extension part and the corresponding first extension part is provided with a circular arc transition section.

Furthermore, the embedding part is provided with a third extending part and a fourth extending part which are sequentially connected along the direction extending to the slow release space, the cross-sectional area of the fourth extending part is larger than that of the third extending part, and the fourth extending part is clamped and arranged in the clamping cavity and is abutted against the outer end part of the clamping part.

Furthermore, a first supporting inclined plane is arranged on the inner wall of the rear end of the longitudinal beam, second supporting inclined planes which abut against the first supporting inclined plane are arranged at two ends of the first cross beam, the first supporting inclined planes are perpendicular to the horizontal plane and form an included angle with the axis of the frame, a boss is arranged on the outer wall of the longitudinal beam close to the end portion, and a buckle plate which is used for buckling the boss is arranged on the second cross beam.

Furthermore, a first through hole channel is formed in the abutting position of the first supporting inclined plane and the second supporting inclined plane along the abutting surface, and a matched strip-shaped piece is arranged in the first through hole channel.

Furthermore, a reinforcing rib plate corresponding to the abutting part is arranged on one side, facing the first cross beam, of the second cross beam, a second through hole matched with the strip-shaped part is formed in the reinforcing rib plate, a first strip-shaped hole is formed in the surface, facing the second cross beam, of the first cross beam, a second strip-shaped hole is formed in the surface, facing the second cross beam, of the longitudinal beam, the first strip-shaped hole and the second strip-shaped hole are communicated to form an extending space for accommodating the reinforcing rib plate, and when the reinforcing rib plate extends into the extending space, the second through hole corresponds to the first through hole channel.

Furthermore, at least two reinforcing ribs corresponding to each abutting part are arranged along the direction of the first through hole channel, and a connecting plate is arranged between the reinforcing ribs at each abutting part.

The utility model discloses a technological effect and advantage:

the truck reinforced automobile frame provided by the embodiment of the application at least comprises two longitudinal beams which are arranged in parallel, and a front cross beam, a middle cross beam and a rear cross beam which are respectively arranged between the longitudinal beams, wherein the rear cross beam comprises a first cross beam, a second cross beam and a slow release part, the slow release part comprises a first slow release layer and a second slow release layer, a plurality of clamping parts which are arranged at intervals are formed on the first slow release layer, a plurality of embedding parts are formed on the second slow release layer, the embedding parts are matched with the clamping parts, the rear cross beam is improved, the restraint matching of the first cross beam and the second cross beam is adopted, so that the restraint force in the axial direction of the truck frame is generated when the rear cross beam is impacted, the slow release part is arranged between the improved first cross beam and the improved second cross beam, the anti-deformation capacity of the rear cross beam of the truck is improved, and the problem of rigid collision failure which is likely to generate by an, the slow release layer gradually decomposes the action and restrains the action on the axial direction of the frame, so that the integrity and the safety of the frame are further improved.

The construction of the present application and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic rear structural view of a truck frame of a reinforced truck according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a portion of the enlarged structure at K in FIG. 1;

FIG. 3 is a partial structural view of the engaging portion 41 in the embodiment of the present application;

FIG. 4 is a schematic view of a stress-resolved working structure of a sustained release layer in an embodiment of the present application;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 1 at L;

FIG. 6 is an enlarged partial cross-sectional view of the structure of FIG. 1 at M;

FIG. 7 is a bottom view of a portion of the second cross member in an embodiment of the present application;

FIG. 8 is a schematic view of a portion of the cross-sectional structure of FIG. 7;

fig. 9 is a partial structural schematic view of the longitudinal beam 3 and the first cross beam 1 in the embodiment of the present application in a matching connection.

In the figure:

1. first crossbeam, 11, circular arc bulge, 12, first bar hole, 2, second crossbeam, 21, circular arc depressed part, 22, buckle, 23, reinforcing rib plate, 24, second through-hole, 25, connecting plate, 3, longeron, 31, boss, 32, second bar hole, 4, first slowly-releasing layer, 41, block portion, 411, first extension, 412, second extension, alpha, inclination, 5, second slowly-releasing layer, 51, third extension, 52, fourth extension, 6, slowly-releasing space, 7, strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Furthermore, it should be noted that in the description of the embodiments of the present application, the terms of direction or positional relationship indicated by the terms "inside", "outside", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present application.

Furthermore, it should be noted that, in the description of the embodiments of the present application, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the examples of the present application can be understood by those skilled in the art as appropriate.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, "a plurality" or the like means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The frame is a frame structure bridged on the front axle and the rear axle of the automobile, is commonly called a crossbeam and is a base body of the automobile. The connecting device is generally composed of two longitudinal beams and a plurality of transverse beams, and the beams are fixedly connected together at certain positions in a welding mode. The common load-carrying vehicle frame is basically a boundary beam type vehicle frame, the boundary beam type vehicle frame mainly comprises two longitudinal beams and a plurality of cross beams, the longitudinal beams are mostly in a groove shape, and partial load-carrying vehicles are also provided with auxiliary beams above the longitudinal beams or steel plates are stacked on two sides of the longitudinal beams as large transport vehicles, so that the overall strength of the vehicle frame is enhanced. The arrangement of the cross beams on the vehicle is more, and the longitudinal beams are vertically riveted or welded, but the problems of weak anti-collision and impact-resistant performance, poor structural stability, high cost, unsuitability for local part disassembly and replacement and the like easily exist due to the large load of the load-carrying vehicle frame. In order to solve the above problems, the chinese patent application No. 202010012550.0 discloses a heavy truck frame, the frame rear beam includes a first cross beam and a second cross beam, the first cross beam and the second cross beam are horizontally arranged in front and at the back, the first cross beam is provided with a convex rib, the second cross beam is provided with a groove, the alignment of the first cross beam and the second cross beam along the axial direction of the frame is improved by the cooperation of the convex rib and the groove, and the first cross beam or the second cross beam is restrained in the direction perpendicular to the axial direction of the frame when the first cross beam or the second cross beam is acted with an acting force, the anti-collision and anti-deformation capability of the frame rear beam is improved, but in this structure, because the first cross beam, the second cross beam and the longitudinal beam are rigidly matched together, when the rear part of the whole structure is impacted greatly, the acting force in the axial direction of the frame can be converted into the acting force by the cooperation of the convex rib and, fatigue wear can occur and, in the case of failure modes of rigid structural connections, cracks can easily develop directly.

From this, improve on above-mentioned prior art's basis, the truck strengthens car frame that this application embodiment provided solves the problem that crashproof shock resistance is relatively weak, structural stability is poor in the load in-process.

As shown in fig. 1 to 9, the truck reinforced automobile frame provided in the embodiment of the present application includes two longitudinal beams 3 arranged in parallel, and a front cross beam, a middle cross beam and a rear cross beam respectively arranged between the longitudinal beams 3, where the front cross beam is arranged at the front end of the longitudinal beams 3, the middle cross beam is arranged in the middle of the longitudinal beams 3, the rear cross beam is arranged at the rear end of the longitudinal beams 3, and the rear cross beam includes:

the first cross beam 1 is arranged between the rear ends of the longitudinal beams 3, and the middle part of the first cross beam 1 extends to two sides along the length direction perpendicular to the first cross beam 1 to form arc convex parts 11;

the second cross beam 2 is clamped and arranged on the outer side of the rear end of the longitudinal beam 3 along the direction of the longitudinal beam 3 so as to cover the outer side of the first cross beam 1, the middle part of the second cross beam 2 extends to the direction far away from the first cross beam 1 to form an arc-shaped concave part 21, and an arc-shaped slow release space 6 is formed between the arc-shaped concave part 21 and the arc-shaped convex part 11; and

the slow release portion is arranged in a slow release space 6 and comprises a first slow release layer 4 and a second slow release layer 5, the first slow release layer 4 is arranged on the outer surface of the second cross beam 2, the surface of the first slow release layer 4 extends to the slow release space 6 to form a plurality of clamping portions 41 arranged at intervals, the clamping portions 41 are formed in the direction of the first slow release layer 4 to form an inwards-recessed clamping cavity, the second slow release layer 5 is arranged on the surface of the first cross beam 1 adjacent to the arc recessed portion 21, the surface of the second slow release layer 5 extends to the slow release space 6 to form a plurality of embedding portions, the embedding portions are matched with the clamping portions 41, and the embedding portions are clamped in the clamping cavities.

In the embodiment of the present application, as shown in fig. 1, since the embodiment of the present application is improved for the back beam portion, the back beam portion is shown, and the rest portion may adopt a structure shown in the chinese patent application with application number 202010012550.0, or a structure of a conventional frame in the prior art, which may be used, and is not described herein again. In the technical scheme, the cambered surface design is adopted, so that the contact area between the first cross beam 1 and the second cross beam 2 can be increased, the centering performance is improved, the stress transmission of the frame in the axial direction is ensured to be more uniform, and the collision resistance of the frame is improved. And more furtherly, in order to improve the shock-absorbing capacity, reduce the rigidity damage to the frame structure, set up slowly-releasing space 6 between first crossbeam 1 and second crossbeam 2, carry out the flexibility release through slowly-releasing space 6 to the effort that the rigid structure received in the instant, slowly-releasing portion in slowly-releasing space 6 carries out slowly-releasing effort through embedding portion and the cooperation of block portion 41, when receiving the impact of effort, embedding portion and block portion 41 receive the extrusion, embedding portion extrusion block portion 41 carries out the pile extrusion on the frame axial direction, further form the ascending flexible slowly-releasing layer of pile up of reinforcing, and then reduce the fatigue wear to the contact surface between the rigid connection structure, and then when improving the crashworthiness of frame, overall structure's stability has been improved again.

Next, a specific structure of the sustained-release section will be described with reference to fig. 2 to 4.

As shown in fig. 2 and 3, in a specific implementation, the engaging portion 41 has first extending portions 411 that are symmetrically disposed, the engaging cavity is formed between the first extending portions 411, a second extending portion 412 is formed by extending an outer end of the first extending portion 411 into the engaging cavity, and a tendency of closing the engaging cavity is formed between the corresponding second extending portions 412. In order to further strengthen the function of slow accumulation and release of the clamping part 41 in the axial direction when the axial force is applied, an inclination angle alpha is formed between the first extension part 411 and the corresponding second extension part 412, and the inclination angle alpha is 30-60 degrees. In order to reduce stress concentration, more specifically, the outer end of the second extension 412 has a circular arc section, and more specifically, the connection between the second extension 412 and the corresponding first extension 411 has a circular arc transition section.

As shown in fig. 2, in order to cooperate with the engaging portion 41 to form a stable structure with a good slow release effect, the embedded portion has a third extending portion 51 and a fourth extending portion 52 connected in sequence along a direction extending to the slow release space 6, the cross-sectional area of the fourth extending portion 52 is larger than that of the third extending portion 51, and the fourth extending portion 52 is engaged with and disposed in the engaging cavity and is abutted against the outer end portion of the engaging portion 41.

As shown in fig. 4, when the second sustained release layer 5 receives an axial acting force, the third extending portion 51 acts in an axial direction to drive the fourth extending portion 52 to extrude into the engaging cavity, when the fourth extending portion 52 is disposed, the fourth extending portion 52 and the engaging cavity can be disposed in an interference fit, because the fourth extending portion 52 has a larger cross section, when the engaging cavity is extruded, the first extending portion 411 is extruded in a direction opposite to the direction in which the fourth extending portion 52 is stressed (i.e., in the direction of the second sustained release layer 5), the second extending portion 412 has a certain inclination angle α with the first extending portion 411, and the second extending portion 412 and the fourth extending portion 52 generate an abutting interaction, and the joint of the second extending portion 412 and the first extending portion 411 arches towards the second sustained release layer 5, so as to achieve a stacking effect, and further achieve sustained release of a rigid impact force. In specific implementation, the slow release portion may be made of a material having elasticity such as a rubber material.

On the basis of the technical scheme, more specifically, when the vehicle frame is implemented, a first supporting inclined plane is arranged on the inner wall of the rear end of the longitudinal beam 3, second supporting inclined planes which abut against the first supporting inclined plane are arranged at two ends of the first cross beam 1, the first supporting inclined plane is perpendicular to the horizontal plane and forms an included angle with the axis of the vehicle frame, a boss 31 is arranged on the outer wall of the longitudinal beam 3 close to the end portion, and a buckle plate 22 which buckles the boss 31 is arranged in the second cross beam 2. The stability of the connecting structure is further improved by the inclined plane supporting matching structure and the buckling structure of the boss 31 of the buckle plate 22.

In order to prevent rigid wear failure between the inclined plane support matching structures, more specifically, as shown in fig. 1 and 5, a first through hole channel is arranged at the abutting part of the first support inclined plane and the second support inclined plane along the abutting surface, a strip 7 adapted to the first through hole channel is arranged in the first through hole channel, when the connecting structure is used, the connecting structure can be rapidly disassembled by pulling out the strip 7, meanwhile, the strip 7 can be set to be a material capable of absorbing impact energy, such as rubber, and when the connecting structure is impacted, the acting force between the inclined plane support matching surfaces can be reduced.

In order to further improve the stability of the connection structure, as shown in fig. 6 to 9, a reinforcing rib 23 corresponding to the abutting portion is provided on one side of the second cross member 2 facing the first cross member 1, a second through hole 24 adapted to the bar 7 is provided on the reinforcing rib 23, a first bar hole 12 is provided on a surface of the first cross member 1 facing the second cross member 2, a second bar hole 32 is provided on a surface of the longitudinal beam 3 facing the second cross member 2, the first bar hole 12 and the second bar hole 32 are communicated to form an extending space for accommodating the reinforcing rib 23, when the reinforcing rib 23 extends into the extending space, the second through hole 24 corresponds to the first through hole channel, more specifically, at least two reinforcing ribs 23 corresponding to each abutting portion are provided along the direction of the first through hole channel, and a connecting plate 25 is arranged between the reinforcing ribs 23 at each abutting position.

Through some embodiments, as the slow release part is arranged, the slow release part comprises a first slow release layer 4 and a second slow release layer 5, a plurality of clamping parts 41 arranged at intervals are formed on the first slow release layer 4, a plurality of embedding parts are formed on the second slow release layer 5, the embedding parts are matched with the clamping parts 41, the rear cross beam is improved, the restraint fit of the first cross beam 1 and the second cross beam 2 is utilized, so that the restraint force in the axial direction of the frame is generated when the rear cross beam is impacted, the slow release part is arranged between the improved first cross beam 1 and the improved second cross beam 2, the problem that the assembled rear cross beam is easy to generate rigid collision failure is solved while the collision resistance and deformation resistance of the rear cross beam of the frame are improved, the action is gradually decomposed and restrained in the axial direction of the frame through the slow release layer, the integrity and the safety of the frame are further improved, and the inclined plane supporting and matching structure is improved at the same time, a more stable connection structure is obtained.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a lorry reinforces car frame which characterized in that, includes two longerons of parallel arrangement and sets up respectively front beam, centre sill, back crossbeam between the longeron, the front beam sets up the front end of longeron, the centre sill sets up the middle part of longeron, the back crossbeam sets up the rear end of longeron, the back crossbeam includes:

2. The truck reinforced vehicle frame as recited in claim 1, wherein: the clamping part is provided with first extending parts which are symmetrically arranged, the clamping cavity is formed between the first extending parts, the outer end parts of the first extending parts extend into the clamping cavity to form second extending parts, and a trend of closing the clamping cavity is formed between the corresponding second extending parts.

3. The truck reinforced vehicle frame as recited in claim 2, characterized in that: an inclination angle is formed between the first extension part and the corresponding second extension part, and the inclination angle is 30-60 degrees.

4. The truck reinforced vehicle frame as recited in claim 2, characterized in that: the outer end part of the second extension part is provided with an arc section.

5. The truck reinforced vehicle frame as recited in claim 2, characterized in that: the connection part of the second extension part and the corresponding first extension part is provided with a circular arc transition section.

6. The truck reinforced vehicle frame as recited in claim 1, wherein: the embedding part is provided with a third extending part and a fourth extending part which are sequentially connected along the direction extending to the slow release space, the cross sectional area of the fourth extending part is larger than that of the third extending part, and the fourth extending part is clamped and arranged in the clamping cavity and is abutted against the outer end part of the clamping part.

7. The truck reinforced vehicle frame as recited in any one of claims 1 to 6, wherein: the inner wall of the rear end of the longitudinal beam is provided with a first supporting inclined plane, two ends of the first cross beam are provided with second supporting inclined planes which abut against the first supporting inclined planes, the first supporting inclined planes are perpendicular to the horizontal plane and form an included angle with the axis of the frame, the outer wall of the longitudinal beam close to the end portion is provided with a boss, and the second cross beam is provided with a buckle plate which buckles the boss inside.

8. The truck reinforced vehicle frame of claim 7, wherein: the butt joint of the first supporting inclined plane and the second supporting inclined plane is provided with a first through hole channel along the butt joint surface, and a strip-shaped part matched with the first through hole channel is arranged in the first through hole channel.

9. The truck reinforced vehicle frame of claim 8, wherein: the reinforcing rib plate corresponding to the butt joint is arranged on one side, facing the first cross beam, of the second cross beam, a second through hole matched with the strip-shaped part is formed in the reinforcing rib plate, a first strip-shaped hole is formed in the surface, facing the second cross beam, of the first cross beam, a second strip-shaped hole is formed in the surface, facing the second cross beam, of the longitudinal beam, the first strip-shaped hole and the second strip-shaped hole are communicated to form an extending space for accommodating the reinforcing rib plate, and when the reinforcing rib plate extends into the extending space, the second through hole corresponds to the first through hole channel.

10. The truck reinforced vehicle frame of claim 9, wherein: at least two reinforcing rib plates corresponding to each abutting part are arranged along the direction of the first through hole channel, and a connecting plate is arranged between the reinforcing rib plates at each abutting part.