CN207955784U - A kind of load-carrying vehicle carriage - Google Patents

Abstract

The utility model discloses a kind of load-carrying vehicle carriages, it includes the left-hand stringer and right-hand stringer being set up in parallel, left-hand stringer is in a groove shape, it includes top airfoil and lower aerofoil, the rear end of top airfoil is vertical with the side of left-hand stringer, it bends inwards in the middle part of top airfoil, the front and rear end of top airfoil is parallel；The structure of lower aerofoil and top airfoil are symmetrical；The structure of right-hand stringer and left-hand stringer are symmetrical；Front side crossbeam, second cross beam, gearbox hanger beam, drop hanger crossbeam, rear suspension front beam, rear suspension rear cross beam and caudal crossbeam are disposed between left-hand stringer and right-hand stringer.The utility model to structures such as frame cross and connecting plates by being improved design, and in conjunction with novel high-strength steel plate is used, while so that vehicle frame weight is significantly reduced, intensity and rigidity have a distinct increment, to increase the stability and load of vehicle.

Description

A truck frame

technical field

The utility model relates to a vehicle frame, in particular to a vehicle frame for loading.

Background technique

With the continuous deepening of the concept of energy saving and environmental protection, the research on energy saving and emission reduction of automobiles in the industry is in full swing. As the most widely used energy-saving technology at present, reducing body weight has become an important research direction for the development of the automobile industry. Studies have shown that the weight of the car body accounts for about 30%-50% of the total fuel volume of the car. Especially for profit-oriented freight cars, on the premise of meeting the safety performance of the vehicle and not damaging the user's profit purpose, reducing the body weight will not only It can save energy, reduce fuel consumption, and can also carry more cargo, increasing income for users.

Therefore, the lightweight research on transport trucks is a new direction for the development of automobiles. As the frame is one of the main structures of the transport truck and the assembly of key safety components, it is particularly important to reduce its own weight.

Contents of the invention

The utility model aims at the above-mentioned deficiencies of the prior art, and provides a heavy-duty vehicle frame which improves the structure of the frame to reduce the weight of the frame.

In order to solve the problems of the technologies described above, the utility model adopts the following technical solutions:

Provided is a load-carrying vehicle frame, which includes a left longitudinal beam and a right longitudinal beam arranged side by side, the left longitudinal beam is in the shape of a groove, and includes an upper airfoil and a lower airfoil, and the rear end of the upper airfoil is connected to the The side of the left stringer is vertical, the middle part of the upper wing is bent inward, and the front end of the upper wing is parallel to the rear end; the structure of the lower wing is symmetrical with the upper wing; The beams are symmetrical; the front side beam, the second beam, the gearbox hanger beam, the transmission shaft hanger beam, the rear suspension front beam, the rear suspension rear beam and the tail beam are arranged in sequence between the left side beam and the right side beam. Side crossbeam; front suspension front leaf spring support, front shock absorber support, front suspension rear leaf spring support, rear suspension front Leaf spring mounts, secondary spring mounts and rear suspension rear leaf spring mounts.

In the above technical solution, preferably, two secondary spring supports are arranged side by side on the left side beam and the right side side beam.

In the above technical solution, preferably, a tow hook is riveted on the lower airfoil at the connection position between the right longitudinal beam and the rear cross beam.

In the above technical solution, preferably, the second crossbeam is in the shape of a round tube, the second crossbeam is welded with an upper side attachment plate of the second crossbeam, and the second crossbeam is provided with a second crossbeam wiring harness fixing bracket toward the side of the rear crossbeam; Both ends of the beam are riveted with the left side beam and the right side side beam through the second beam installation support.

In the above technical solution, preferably, both sides of the gearbox hanger beam are symmetrically arranged inclined plates, and the upper ends of the inclined plates on both sides are connected to each other through a flat plate; the lower ends of the inclined plates are riveted with the left side beam and the right side side beam .

In the above technical solution, preferably, the bottom surface of the transmission hanger beam is connected to the beam bracket, the middle part of the beam bracket is riveted with the inclined plate and the flat plate on the transmission hanger beam, and the two ends of the beam bracket are connected to the left longitudinal beam and the right side The inner side of the lower wing of the stringer is riveted.

In the above technical solution, preferably, the beam of the transmission shaft hanger is groove-shaped, and the two ends of the beam of the transmission shaft hanger are connected to the left side beam and the right side side beam through the connecting plate of the transmission shaft hanger beam.

In the above technical solution, preferably, the transmission shaft hanger beam includes an upper side, a lower side and a belly surface, and the side of the belly surface facing the tail side beam is fixedly connected to the gas storage tank mounting bracket.

In the above technical solution, preferably, the front beam of the rear suspension is in the shape of a groove, and the two sides of the upper end surface of the front beam of the rear suspension respectively pass through the upper connecting plate of the front beam of the rear suspension and the upper wings of the left side beam and the right side side beam. Surface riveting; both sides of the lower end surface of the front beam of the rear suspension are respectively riveted with the lower wing surfaces of the left side beam and the right side beam through the lower connecting plate of the rear suspension front beam; Front leaf spring bearings of the rear suspension are arranged symmetrically on the outer surface of the connection position of the front cross beam of the rear suspension.

In the above technical solution, preferably, the structure of the rear suspension rear beam is the same as that of the rear suspension front beam, and the rear suspension rear beam is arranged symmetrically to the rear suspension front beam.

The main beneficial effects of the above-mentioned heavy-duty vehicle frame provided by the utility model are:

By improving the structure of the left side beam and the right side beam and setting them in a groove shape, compared with the existing structure, the weight of the frame can be reduced, and the bending resistance, torsion resistance, and fatigue resistance of the frame can be improved at the same time, avoiding It is not easy to deform and break during the running of the frame.

The groove-shaped upper and lower airfoils and side surfaces are respectively connected to the beams to increase the contact area of the fixed connection parts and ensure the load-carrying performance and safety and stability of the vehicle; while reducing the weight of the frame, the vehicle’s Bearing performance and safety and stability can reduce the cost of the vehicle frame, which in turn is conducive to energy saving, emission reduction and environmental protection.

Description of drawings

Fig. 1 is a schematic structural view of the vehicle frame of the utility model.

Fig. 2 is a structural schematic diagram of the longitudinal beam part.

Fig. 3 is a structural schematic diagram of the front beam part.

Fig. 4 is a structural schematic diagram of the tail beam part.

Fig. 5 is a schematic structural diagram of the second beam part.

Fig. 6 is a structural schematic diagram of the beam part of the transmission hanger.

Fig. 7 is a structural schematic diagram of the beam part of the transmission shaft hanger.

Fig. 8 is a structural schematic diagram of the front beam part of the rear suspension.

Fig. 9 is a structural schematic diagram of the rear beam part of the rear suspension.

Among them: 1. Left side beam, 2. Front side beam, 3. Right side beam, 4. Tail side beam, 5. Second beam installation support, 6. Second beam, 7. Upper side of the second beam Attached plate, 8. Fixing bracket for second beam harness, 9. Front leaf spring support of rear suspension, 10. Rear leaf spring support of rear suspension, 11. Auxiliary spring support, 12. Front cross beam of rear suspension, 13 . Transmission shaft hanger beam, 14. Drive shaft hanger beam connecting plate, 15. Gas storage tank mounting bracket, 16. Transmission hanger beam, 17. Front shock absorber support, 18. Rear shock absorber support, 19. Rear suspension rear beam, 20. Tow hook, 21. Upper connecting plate of rear suspension front beam, 22. Lower connection plate of rear suspension front beam, 23. Front leaf spring support of front suspension, 24. Front suspension Frame rear leaf spring bearing, 25, the connecting plate on the rear beam of the rear suspension, 26, the lower connecting plate of the rear beam of the rear suspension, 27, the arch beam support.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in FIG. 1 , it is a structural schematic diagram of a truck frame.

The truck frame of the utility model includes a left side beam 1 and a right side side beam 3 arranged side by side, the left side side beam 1 is groove-shaped, as shown in Figure 2, it includes an upper wing surface and a lower wing surface, The rear end of the upper airfoil is perpendicular to the side of the left stringer 1, the middle part of the upper airfoil is bent inward, and the front end of the upper airfoil is parallel to the rear end; the structure of the lower airfoil is symmetrical to that of the upper airfoil; The structure of the longitudinal beam 3 is symmetrical to that of the left longitudinal beam 1, and the materials of the left longitudinal beam 1 and the right longitudinal beam 3 are both high-strength steel 700-5GB/T3273.

By improving the structure of the left side beam 1 and the right side beam 3, and setting them in a groove shape, compared with the existing structure, the weight of the frame can be reduced, and the bending resistance, torsion resistance, and fatigue resistance of the frame can be improved at the same time , to avoid deformation and breakage that are not easy to occur during the running of the frame.

By connecting the trough-shaped upper and lower airfoils and side surfaces to the beams respectively, the contact area of the fixed connection parts is increased to ensure the load-carrying performance, safety and stability of the vehicle.

Between the left longitudinal beam 1 and the right longitudinal beam 3, a front side beam 2, a second beam 6, a gearbox hanger beam 16, a transmission shaft hanger beam 13, a rear suspension front beam 12, and a rear suspension rear beam are sequentially arranged. Crossbeam 19 and tailside crossbeam 4.

As shown in Figure 3 and Figure 4, the two ends of the front side beam 2 and the tail side beam 4 are riveted with the left side beam 1 and the right side beam 3 respectively; by improving the structure of the side beam, the front side beam 2 and the tail side beam 4 The height of the ventral surface is lower than that of the existing structure, thereby reducing the overall weight of the vehicle frame; wherein, a tow hook 20 is riveted on the lower wing surface at the connection position between the right longitudinal beam 3 and the rear side cross beam 4 .

As shown in Figure 5, the second crossbeam 6 is in the shape of a round tube, which is convenient for processing; the second crossbeam 6 is welded with the second crossbeam upper side attachment plate 7, and the second crossbeam 6 is provided with a side for fixing the vehicle toward the rear side crossbeam 4. The second beam harness fixing bracket 8 of the internal wiring harness of the front compartment; the two ends of the second beam 6 are riveted with the left side beam 1 and the right side side beam 3 through the second beam installation support 5 .

By arranging the second beam 6 as a circular tube structure, compared with the existing channel-shaped steel structure, the weight of the second beam 6 can be significantly reduced, and the process is simple and the installation is convenient.

As shown in Figure 6, both sides of the gearbox hanger beam 16 are symmetrically arranged inclined plates, and the upper ends of the inclined plates on both sides are connected to each other through a flat plate; Riveting; the bottom surface of the transmission hanger beam 16 is connected with the beam bracket 27, the middle part of the beam bracket 27 is riveted with the inclined plate and the flat plate on the transmission hanger beam 16, and the two ends of the beam bracket 27 are connected with the left longitudinal beam 1 and the right side The inner side of the lower airfoil of the longitudinal beam 3 is riveted.

By setting the crossbeam bracket 27 below the transmission hanger crossbeam 16, the strength and rigidity of the crossbeam can be increased, and the safety of the vehicle frame can be improved; The hanger crossbeam 16 is arranged at the rear end of the transmission to fix the transmission assembly, which can ensure the safe and stable transmission of the power system. At the same time, the structure of the gearbox hanger crossbeam 16 is set as an arched structure composed of a slant plate and a flat plate, which can facilitate the installation of the gearbox and other structures and prevent the components from interfering with each other.

As shown in Figure 7, the transmission shaft hanger beam 13 is groove-shaped, the height of the ventral surface is lower than that of the existing structure, and a plurality of lightening holes are opened on the ventral surface; the two ends of the transmission shaft hanger beam 13 are suspended by the transmission shaft. The frame beam connecting plate 14 is connected with the left side beam 1 and the right side beam 3; the transmission shaft hanger beam 13 includes an upper side, a lower side and a belly surface, and its belly surface faces the side of the tail side beam 4 and is used for fixing the gas storage. The gas storage tank mounting bracket 15 of the tank assembly is fixedly connected by bolts; the gas storage tank mounting bracket 15 is L-shaped.

As shown in Figure 8, the front beam 12 of the rear suspension is in the shape of a groove, the height of the ventral surface is lower than that of the existing structure, and a plurality of lightening holes are opened on the ventral surface; the two sides of the upper end surface of the front beam 12 of the rear suspension respectively pass through The upper connecting plate 21 of the front beam of the rear suspension is riveted with the upper airfoil of the left side beam 1 and the side beam 3 of the right side; The lower wing surfaces of the left longitudinal beam 1 and the right longitudinal beam 3 are riveted; the upper connecting plate 21 of the front cross member of the rear suspension and the lower connecting plate 22 of the front cross member of the rear suspension are both L-shaped and arranged symmetrically so as to facilitate the lowering of the vehicle frame Self-weight, saving materials, and because of the simple structure, can reduce the difficulty of manufacturing process.

As shown in Figure 9, the structure of the rear suspension rear beam 19 is the same as the rear suspension front beam 12, and the rear suspension rear beam 19 is symmetrically arranged with the rear suspension front beam 12; Connect with the upper connection plate 25 of the rear suspension rear cross beam and the lower connection plate 26 of the rear suspension rear cross beam respectively.

The outer sidewalls of the left longitudinal beam 1 and the right longitudinal beam 3 are sequentially symmetrically provided with a front suspension front leaf spring support 23, a front shock absorber support 17, a front suspension rear leaf spring support 24, and a rear suspension suspension. Frame front leaf spring bearing 9, secondary spring bearing 11 and rear suspension rear leaf spring bearing 10.

Wherein, two auxiliary spring supports 11 on the left side beam 1 and the right side side beam 3 are arranged side by side respectively, and are respectively arranged adjacent to the front leaf spring support 9 of the rear suspension and the rear leaf spring support 10 of the rear suspension. position; the left longitudinal beam 1 and the right side longitudinal beam 3 are symmetrically provided with the rear suspension front leaf spring support 9 on the outer side of the connection position of the rear suspension front beam 12; the left side longitudinal beam 1 and the right side Front suspension rear leaf spring supports 24 are arranged symmetrically on the outer side of the position where the longitudinal beam 3 is connected to the rear cross beam 19 of the rear suspension.

Among them, the front suspension front leaf spring support 23, the front suspension rear leaf spring support 24, the rear suspension front leaf spring support 9 and the rear suspension rear leaf spring support 10 are all made of high-strength precision cast steel Compared with the nodular cast iron material used in the existing frame, it can increase the strength of the bracket, avoid the occurrence of fracture accidents caused by many internal defects, poor surface quality, and low strength of the cast iron material, and also reduce the weight of the lifting lug .

The specific embodiment of the present invention is described above, so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiment, for those of ordinary skill in the art, as long as Various changes are within the spirit and scope of the utility model defined and determined by the appended claims, and these changes are obvious, and all inventions and creations utilizing the concept of the utility model are all included in the protection list.

Claims (10)

1. a kind of load-carrying vehicle carriage, which is characterized in that described including the left-hand stringer (1) being set up in parallel and right-hand stringer (3) Left-hand stringer (1) is in a groove shape comprising and the rear end of top airfoil and lower aerofoil, top airfoil is vertical with the side of left-hand stringer (1), on It bends inwards in the middle part of aerofoil, the front and rear end of top airfoil is parallel；The structure of lower aerofoil and top airfoil are symmetrical；Right-hand stringer (3) structure and left-hand stringer (1) are symmetrical；

It is horizontal that front side crossbeam (2), second cross beam (6), gearbox hanger are disposed between left-hand stringer (1) and right-hand stringer (3) Beam (16), drop hanger crossbeam (13), rear suspension front beam (12), rear suspension rear cross beam (19) and caudal crossbeam (4)；

Front suspension front plate spring bearing (23), preceding is symmetrically arranged on the outside side wall of left-hand stringer (1) and right-hand stringer (3) successively Spring carrying block (24), rear suspension front plate spring bearing (9), auxiliary spring bearing (11) and rear suspension after absorber seat (17), front suspension Spring carrying block (10) afterwards.

2. load-carrying vehicle carriage according to claim 1, which is characterized in that the left-hand stringer (1) and right-hand stringer (3) On be respectively set up in parallel there are two auxiliary spring bearing (11).

3. load-carrying vehicle carriage according to claim 1, which is characterized in that the right-hand stringer (3) and caudal crossbeam (4) Riveting has towing hook (20) on lower aerofoil at link position.

4. load-carrying vehicle carriage according to claim 1 or 3, which is characterized in that the second cross beam (6) is in tubular, It is welded with attached plate (7) on the upside of second cross beam on second cross beam (6), second cross beam (6) is provided with the towards caudal crossbeam (4) side Two crossbeam wire harness fixing supports (8)；The both ends of second cross beam (6) by second cross beam erection support (5) and left-hand stringer (1) and Right-hand stringer (3) rivets.

5. load-carrying vehicle carriage according to claim 1, which is characterized in that the both sides of the gearbox hanger beam (16) Upper end for symmetrically arranged inclined plate, both sides inclined plate is connected with each other by a tablet；The lower end of inclined plate and left-hand stringer (1) and Right-hand stringer (3) rivets.

6. load-carrying vehicle carriage according to claim 5, which is characterized in that gearbox hanger beam (16) bottom surface with Overarm brace (27) connects, the middle part of the overarm brace (27) and the inclined plate on gearbox hanger beam (16) and tablet riveting It connects, the both ends of overarm brace (27) are riveted on the inside of the lower aerofoil of left-hand stringer (1) and right-hand stringer (3).

7. load-carrying vehicle carriage according to claim 1, which is characterized in that the drop hanger crossbeam (13) is in slot The both ends of shape, drop hanger crossbeam (13) are vertical by drop hanger cross-beam connecting plate (14) and left-hand stringer (1) and right side Beam (3) connects.

8. load-carrying vehicle carriage according to claim 1 or claim 7, which is characterized in that drop hanger crossbeam (13) packet Upper side, downside and the outside of belly are included, the outside of belly connects towards the side of caudal crossbeam (4) and air accumulator mounting bracket (15) are fixed It connects.

9. load-carrying vehicle carriage according to claim 1, which is characterized in that the rear suspension front beam (12) is in a groove shape, The on both sides of the upper end of rear suspension front beam (12) passes through rear suspension front beam upper junction plate (21) and left-hand stringer (1) and the right side respectively The top airfoil of side girder (3) rivets；The lower face both sides of rear suspension front beam (12) under rear suspension front beam respectively by connecting Plate (22) is riveted with the lower aerofoil of left-hand stringer (1) and right-hand stringer (3)；In left-hand stringer (1) and right-hand stringer (3) and rear overhang Lateral surface at frame front beam (12) link position is symmetrically arranged with rear suspension front plate spring bearing (9).

10. load-carrying vehicle carriage according to claim 9, which is characterized in that the structure of the rear suspension rear cross beam (19) It is identical as rear suspension front beam (12), and rear suspension rear cross beam (19) and rear suspension front beam (12) symmetrical setting.