Asymmetric frame structure

Abstract

The utility model relates to the technical field of commercial vehicles, and particularly discloses an asymmetric frame structure which comprises a frame tail beam, a left longitudinal beam and a right longitudinal beam, the end of the right longitudinal beam is fixedly connected with one end of the frame tail beam, and the other end of the frame tail beam is fixedly connected with the left longitudinal beam. The left longitudinal beam is longer than the right longitudinal beam, and the end, close to the frame tail beam, of the left longitudinal beam protrudes out of the end, close to the frame tail beam, of the right longitudinal beam and the frame tail beam. The left longitudinal beam extends by a certain length relative to the frame tail beam and the right longitudinal beam; the frame tail beam is used for fixedly mounting a standby gas cylinder and is close to the extending part of the left longitudinal beam; a spare tire is further placed in the space defined by the left longitudinal beam, the right longitudinal beam and the frame tail beam, and the spare tire is close to the frame tail beam and is opposite to the spare gas cylinder. The extending part of the left longitudinal beam is used for fixedly mounting an oil tank; the oil tank backs to the standby gas cylinder and is far away from the right longitudinal beam. The utility model can improve the utilization rate of the layout space of the frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to commercial vehicle technical field, especially asymmetric frame structure. BACKGROUND

[0002] The non-bearing body of the commercial vehicle adopts the left and right longitudinal beams as the frame design of the frame structure, which is composed of two high-strength longitudinal beams extending from the front to the rear along the length direction of the vehicle, forming a solid and stable frame. The left and right longitudinal beams are symmetrically arranged on both sides of the vehicle centerline, not only providing excellent load-bearing capacity and torsional performance, but also ensuring the stability and durability of the vehicle under various road conditions. In addition, this structure is convenient for modification and maintenance, and is suitable for various application scenarios such as trucks, buses and special vehicles.

[0003] In the prior art, the non-bearing body adopts the frame design of the left and right longitudinal beam symmetric structure, specifically, one end of the frame tail beam is fixedly connected with the end of the right longitudinal beam, and the other end of the frame tail beam is fixedly connected with the end of the left longitudinal beam; and the right longitudinal beam and the left longitudinal beam are symmetrically arranged with the center point of the frame tail beam, and the lengths of the two longitudinal beams are equal, forming the frame design of the left and right longitudinal beam symmetric structure. The engine is installed in the middle of the frame, and a single gas cylinder is installed on each side, and the oil tank is installed in the space formed by the frame tail beam and the left and right longitudinal beams, and the oil tank is close to the frame tail beam. The left and right longitudinal beams are symmetrically arranged on both sides of the vehicle centerline, and the layout of the components installed on the frame uniformly distributes the overall load. However, the frame occupies at most 11% of the total weight of the vehicle structure, so the left and right symmetric arrangement of the frame is more to uniformly distribute the components installed on the frame, including the engine, the oil tank and the two gas cylinders, which are installed in a scattered manner, such as the engine installed between the left and right longitudinal beams close to the front of the vehicle; the two gas cylinders are fixedly installed on the outer sides of the left and right longitudinal beams close to the middle of the vehicle body; and the oil tank is fixedly installed on the left and right longitudinal beams close to the rear of the vehicle, so as to uniformly distribute the overall load, but the utilization rate of the layout space of the entire symmetric frame is low. SUMMARY

[0004] In order to improve the utilization rate of the frame layout space, the asymmetric frame structure is provided in the basic scheme.

[0005] An asymmetrical frame structure includes a rear beam, a left longitudinal beam, and a right longitudinal beam. One end of the right longitudinal beam is fixedly connected to one end of the rear beam, and the other end of the rear beam is fixedly connected to the left longitudinal beam. The left longitudinal beam is longer than the right longitudinal beam, and its end near the rear beam protrudes beyond the end of the right longitudinal beam near the rear beam. The left longitudinal beam extends a portion of its length relative to the rear beam and the right longitudinal beam. The rear beam is used to fix a spare gas cylinder, located near the extended portion of the left longitudinal beam. A spare tire is also placed within the space enclosed by the left, right, and rear beams, located near the rear beam and facing away from the spare gas cylinder. The extended portion of the left longitudinal beam is used to fix a fuel tank, which faces away from the spare gas cylinder and is away from the right longitudinal beam.

[0006] Beneficial effects: Compared to existing technologies, the structure of this basic solution is different. First, the left longitudinal beam is longer than the right longitudinal beam, and the end of the left longitudinal beam near the rear beam protrudes beyond the end of the right longitudinal beam near the rear beam, as well as the rear beam itself. The left longitudinal beam extends a portion of its length relative to the rear and right longitudinal beams, meaning that the left and right longitudinal beams are not symmetrical about the center of the rear beam. This allows components to be installed not only within the semi-enclosed structure formed by the left, right, and rear beams, but also on one side of the left longitudinal beam outside the semi-enclosed structure, increasing the installation area and enabling the frame to accommodate more components, thus improving the utilization rate of the frame's layout space.

[0007] Secondly, the space enclosed by the left longitudinal beam, right longitudinal beam, and rear frame beam is also used to house the spare tire. The extended part of the left longitudinal beam is fixedly installed with a fuel tank, and the rear frame beam is fixedly installed with a spare gas cylinder. The force on the spare tire, fuel tank, and spare gas cylinder is evenly distributed in different positions, so that the overall load is evenly distributed. The load can be evenly distributed on the left and right longitudinal beams and the rear frame beam, reducing local stress concentration and extending the service life of the frame.

[0008] Furthermore, the inclusion of a spare tire installation location makes efficient use of the vehicle's internal space; at the same time, the presence of the spare tire ensures that the vehicle can be safely moved to a safe location for repair or replacement, thus improving vehicle safety.

[0009] Finally, a spare gas cylinder is fixedly installed on the rear beam of the vehicle frame; compared with the existing vehicle frame structure of commercial vehicles, an additional spare gas cylinder is added, which can extend the driving range of the commercial vehicle, making it more capable of driving than other commercial vehicles of the same type.

[0010] Preferably, it also includes a protective frame, one end of which is fixedly connected to the left longitudinal beam and the other end of which is fixedly connected to the right longitudinal beam; the fuel tank and the spare gas cylinder are located in the enclosed space formed by the protective frame, the left longitudinal beam, the right longitudinal beam and the rear beam of the frame, and the protective frame is used to enclose and protect the fuel tank and the spare gas cylinder.

[0011] Beneficial effects: compared with the previous installation of the oil tank in the space formed by the tail beam and the left and right longitudinal beams, it can be protected by the longitudinal beams and the tail beam; adding a protection frame to protect the gas cylinder and the oil tank not only achieves the protection of the gas cylinder and the oil tank, but also protects the tail beam of the frame at the same time, further improving the safety.

[0012] Preferably, a spare tire clamping device is fixedly installed between the left longitudinal beam and the right longitudinal beam; the spare tire clamping device comprises a cross beam frame, a locking member and a movable clamp; one end of the cross beam frame is fixedly installed on the left longitudinal beam, the other end is fixedly installed on the right longitudinal beam, and is used to abut against one side of the spare tire; the movable clamp is movably installed on one of the longitudinal beams, and the locking member is fixedly installed on the other longitudinal beam; the movable clamp is used to clamp the other side of the spare tire and is movably connected with the locking member.

[0013] Beneficial effects: it is equivalent to installing a spare tire at the position where the oil tank is installed in the prior art, installing the oil tank on one side of the left longitudinal beam, and then installing the spare tire on the spare tire clamping device between the left longitudinal beam and the right longitudinal beam, which not only realizes the clamping of the spare tire, but also makes full use of the space between the two longitudinal beams.

[0014] Preferably, the rim diameter of the spare tire is not greater than 15 inches.

[0015] Beneficial effects: the rim diameter of the spare tire is not greater than 15 inches, which is suitable for the tire size of ordinary commercial vehicles.

[0016] Preferably, the length of the left longitudinal beam is longer than that of the right longitudinal beam by 350mm.

[0017] Beneficial effects: the left and right longitudinal beams extend along the length direction of the vehicle from the front to the rear, forming a solid and stable frame; if the left longitudinal beam is too long, i.e. the length of the left longitudinal beam is not more than 350mm longer than that of the right longitudinal beam, the frame is unstable, and the length of the vehicle will also be increased, which is easy to cause the vehicle to not meet the current length-related regulations. If the left longitudinal beam is too short, i.e. the length of the left longitudinal beam is less than 350mm longer than that of the right longitudinal beam, the extra length of the left longitudinal beam can only accommodate a smaller oil tank, and the oil storage capacity of the oil tank is small, resulting in a short driving range.

[0018] Preferably, the length of the oil tank is not more than 350mm, the width is not more than 210mm, and the oil storage capacity of the oil tank is 15L.

[0019] Beneficial effects: after the left and right longitudinal beams are modified, and the installation position of the oil tank is changed, the oil storage capacity of the oil tank can still be consistent with that of the current general commercial vehicle, ensuring that the oil storage capacity of the vehicle is not affected by the change.

[0020] Preferably, the length of the spare gas cylinder is not more than the length of the tail beam of the frame, the width is 350mm-690mm, and the gas storage capacity of the spare gas cylinder is not more than 45L.

[0021] Beneficial effects: The spare gas cylinder is fixedly installed on the tail beam of the frame, and faces away from the spare tire. Compared with the prior art, one spare gas cylinder with a storage capacity of not more than 45L can be additionally installed on the frame, and the driving distance of the vehicle is improved.

[0022] Preferably, the protection frame comprises a left protection elbow, a right protection elbow, and a protection straight plate; one end of the left protection elbow is fixedly connected to the left longitudinal beam, and the other end is fixedly connected to one side of the protection straight plate; one end of the right protection elbow is fixedly connected to the right longitudinal beam, and the other end is fixedly connected to the other side of the protection straight plate; the oil tank and the spare gas cylinder are respectively spaced apart from the protection frame by a protection gap, and the protection gap is 50 mm.

[0023] Beneficial effects: The oil tank is installed on the left longitudinal beam, the left longitudinal beam and the left protection elbow are fixedly connected, and the left protection elbow is close to the oil tank to protect the side of the oil tank from direct impact. The protection straight plate is used to protect the front of the oil tank and the spare gas cylinder from direct impact. The oil tank and the spare gas cylinder are respectively spaced apart from the protection frame by a gap, and the distance between the oil tank and the spare gas cylinder and the protection straight plate is 50 mm. In the event of an impact on the protection frame, the oil tank or the spare gas cylinder can be compressed only when the protection frame is deformed to a certain state.

[0024] Preferably, the protection straight plate is a steel plate.

[0025] Beneficial effects: The steel plate can withstand heavy loads, has good processability and weldability, is convenient to manufacture and maintain, has excellent heat resistance and certain corrosion resistance, is suitable for various application scenarios, has high cost-effectiveness, is easy to obtain, and ensures the safety, stability and long-term performance of the structure.

[0026] Preferably, the outer sides of the left longitudinal beam and the right longitudinal beam are respectively used to fixedly install gas cylinders, and the gas cylinders are located at the middle positions of the two longitudinal beams; the inner sides of the left longitudinal beam and the right longitudinal beam are used to fixedly install engines, and the generators are located at the head positions of the two longitudinal beams.

[0027] Beneficial effects: In the prior art, the installation positions of the engines and the gas cylinders are the same, because the volume and weight of the generators and the two batteries are large, the distribution positions of the oil tank, the spare gas cylinder, and the spare tire installed on the entire frame structure are evenly distributed to ensure that the load of the entire frame is evenly distributed. In this way, even if the local load of the frame is increased, the load on the frame is evenly distributed, and the utilization rate of the layout space of the frame is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a top view of an asymmetric frame structure for installing engines, gas cylinders, oil tanks, etc.

[0029] Figure 2 It is a top view of a frame.

[0030] Figure 3 Structural schematic diagram of spare tire layout

[0031] Figure 4 Structural schematic diagram of the rear part of the vehicle frame Specific implementation manner

[0032] The reference signs in the drawings of the specification include:

[0033] Left longitudinal beam 1, right longitudinal beam 2, vehicle frame rear beam 3, fuel tank 4, spare gas cylinder 5, gas cylinder 6, engine 7, spare tire 8, cross beam frame 9, locking part 10, left protection elbow 81, protection straight plate 82, right protection elbow 83

[0034] Embodiment

[0035] This embodiment provides an asymmetric vehicle frame structure, which is basically as Figure 1 shown. An asymmetric vehicle frame structure includes a vehicle frame rear beam 3, a left longitudinal beam 1 and a right longitudinal beam 2. The upper end of the vehicle frame rear beam 3 is fixedly connected to the left longitudinal beam 1, and the lower end of the vehicle frame rear beam 3 is fixedly connected to the right end of the right longitudinal beam 2. As Figure 2 shown, the distance between the top end of the left longitudinal beam 1 and the vehicle frame rear beam 3 is a, a = 350 mm, that is, the left longitudinal beam 1 is 350 mm longer than the right longitudinal beam. The upper end of the left longitudinal beam 1 protrudes from the upper end of the right longitudinal beam 2 and the vehicle frame rear beam 3. The left longitudinal beam 1 extends a partial length relative to the vehicle frame rear beam 3 and the right longitudinal beam 2, and this partial length is a. It is equivalent that the left longitudinal beam 1, the right longitudinal beam 2 and the vehicle frame rear beam 3 can form a vehicle frame structure similar to a "U" shape. A spare tire 8 is fixedly installed in the space semi-surrounded by the "U" - shaped vehicle frame structure. The spare tire 8 is close to the vehicle frame rear beam 3 and faces away from the spare gas cylinder 5. A fuel tank 4 is fixedly installed on one side of the left longitudinal beam 1; the fuel tank 4 faces away from the spare gas cylinder 5 and is far from the right longitudinal beam 2

[0036] Specifically, as Figure 3 shown, an asymmetric vehicle frame structure further includes a spare tire 8 clamping device. The spare tire 8 clamping device includes a cross beam frame 9, a locking part 10 and a movable clamp. One end of the cross beam frame 9 is fixedly installed on the left longitudinal beam 1, and the other end is fixedly installed on the right longitudinal beam 2, close to the vehicle frame rear beam 3. When the vehicle is running, with the road below the vehicle, the cross beam frame 9 is above the road, and the spare tire 8 is between the cross beam frame 9 and the road, that is, the cross beam frame 9 is used to press against the upper part of the spare tire 8. The movable clamp is movably installed on the left longitudinal beam 1, the locking part 10 is fixedly installed on the right longitudinal beam 2, and the movable clamp is movably connected to the locking part​This is merely a schematic diagram of the spare tire 8's arrangement. The crossbeam 9, locking element 10, and movable clamp used are existing technologies, i.e., a standard spare tire 8 clamping device is employed. The spare tire 8's rim diameter is no greater than 15 inches. Figure 4 As shown, the length of fuel tank 4 is b, which is no more than 350mm, and the width is c, which is no more than 210mm. The fuel tank 4 has a fuel capacity of 15L. The length of spare gas cylinder 5 is no more than the length of the rear beam 3 of the frame, and its width is d, 350mm≤d≤690mm. The spare gas cylinder 5 has a gas capacity of 45L.

[0037] An asymmetrical frame structure includes a frame and a protective frame. One end of the protective frame is fixedly connected to a left longitudinal beam 1, and the other end is fixedly connected to a right longitudinal beam 2. The fuel tank 4 and the spare gas cylinder 5 are located inside the protective frame, which is used to surround and protect the fuel tank 4 and the spare gas cylinder 5.

[0038] Specifically, one end of the left protective bend 81 is fixedly connected to the left longitudinal beam 1, and the other end is fixedly connected to one side of the protective straight plate 82; one end of the right protective bend 83 is fixedly connected to the right longitudinal beam 2, and the other end is fixedly connected to the other side of the protective straight plate 82; the oil tank 4 and the spare gas cylinder 5 are respectively separated from the protective frame, and the distance between the oil tank 4 and the spare gas cylinder 5 and the protective straight plate 82 is e, where e = 50mm.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0042] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

[0043] The above is only the embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described too much here. The ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date. The ordinary skilled person in the art can improve and implement the present scheme under the guidance of the present application combined with their own ability. Some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be noted that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application. These will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An asymmetrical frame structure, comprising a rear beam, a left longitudinal beam, and a right longitudinal beam, wherein the end of the right longitudinal beam is fixedly connected to one end of the rear beam, characterized in that, The other end of the rear beam of the frame is fixedly connected to the left longitudinal beam; The left longitudinal beam is longer than the right longitudinal beam, and the end of the left longitudinal beam near the rear beam of the frame protrudes beyond the end of the right longitudinal beam near the rear beam of the frame, as well as the rear beam of the frame; the left longitudinal beam extends a certain length relative to the rear beam of the frame and the right longitudinal beam. The rear beam of the frame is used to securely mount the spare gas cylinder and is located near the extension of the left longitudinal beam. The space enclosed by the left longitudinal beam, the right longitudinal beam, and the rear beam of the frame is also used to store the spare tire, which is close to the rear beam of the frame and faces away from the spare gas cylinder. The extended portion of the left longitudinal beam is used to fix and install the oil tank; the oil tank faces away from the spare gas cylinder and is far away from the right longitudinal beam.

2. The asymmetric frame structure according to claim 1, characterized in that, It also includes a protective frame, one end of which is fixedly connected to the left longitudinal beam, and the other end of which is fixedly connected to the right longitudinal beam; The fuel tank and spare gas cylinder are located within the space enclosed by the protective frame, the left longitudinal beam, the right longitudinal beam, and the rear beam of the frame. The protective frame is used to surround and protect the fuel tank and spare gas cylinder.

3. The asymmetric frame structure according to claim 1, characterized in that, A spare tire clamping device is fixedly installed between the left and right longitudinal beams; the spare tire clamping device includes a crossbeam frame, a locking element, and a movable clamp; one end of the crossbeam frame is fixedly installed on the left longitudinal beam, and the other end is fixedly installed on the right longitudinal beam, for pressing against one side of the spare tire; The movable clamp is movably mounted on one of the longitudinal beams, while the locking element is fixedly mounted on the other longitudinal beam; the movable clamp is used to clamp the other side of the spare tire and is movably connected to the locking element.

4. The asymmetric frame structure according to claim 3, characterized in that, The spare tire's rim diameter should not exceed 15 inches.

5. The asymmetric frame structure according to claim 1, characterized in that, The length of the section is such that the left longitudinal beam is 350mm longer than the right longitudinal beam.

6. The asymmetric frame structure according to claim 5, characterized in that, The length of the fuel tank shall not exceed 350mm, the width shall not exceed 210mm, and the fuel tank capacity shall be 15L.

7. The asymmetric frame structure according to claim 5, characterized in that, The length of the spare gas cylinder shall not exceed the length of the rear beam of the vehicle frame, and its width shall be 350mm-690mm. The gas storage capacity of the spare gas cylinder shall not exceed 45L.

8. An asymmetric frame structure according to claim 2, characterized in that, The protective frame includes a left protective bend, a right protective bend, and a protective straight plate; One end of the left protective bend is fixedly connected to the left longitudinal beam, and the other end is fixedly connected to one side of the protective straight plate; one end of the right protective bend is fixedly connected to the right longitudinal beam, and the other end is fixedly connected to the other side of the protective straight plate; the oil tank and the spare gas cylinder are respectively separated from the protective frame by a protective gap, and the protective gap is 50mm.

9. An asymmetric frame structure according to claim 8, characterized in that, The protective plate is made of steel plate.

10. An asymmetric frame structure according to claim 1, characterized in that, The outer sides of the left and right longitudinal beams are used to fix gas cylinders, and the gas cylinders are located in the middle of the two longitudinal beams; the inner sides of the left and right longitudinal beams are used to fix the engine, and the generator is located at the head of the two longitudinal beams.

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