A vehicle body deflection adjusting device

Abstract

This utility model discloses a car body deflection adjustment device, relating to the field of rail vehicle technology. The car body deflection adjustment device includes a first longitudinal beam, a second longitudinal beam, a pressure beam, and a support assembly. The first longitudinal beam extends along the length of the carbon fiber car body. The second longitudinal beam is used to press downwards against the lower surface of the carbon fiber car body. The pressure beam is used to press downwards against the side wall doorway of the carbon fiber car body, and its height is adjustable as it is mounted on top of the first longitudinal beam. One end of the support assembly is connected to the first longitudinal beam, and the other end of the support assembly is used to support the carbon fiber car body from the bottom. The pressing adjustment method in the car body deflection adjustment device provided by this utility model does not rely on the attachment points on the lower surface of the car body, making it suitable for adjusting the deflection of carbon fiber car bodies. Furthermore, the pressing adjustment method can effectively prevent problems such as instability, deformation, and tearing of the carbon fiber car body.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicle technology, and more specifically, to a vehicle body deflection adjustment device. Background Technology

[0002] Traditional rail vehicle bodies are generally made of metal. To accommodate the assembly of bodies of different sizes, adjustments need to be made to the X, Y, and Z directions of the welding fixtures. The traditional method for setting deflection in urban rail vehicles involves supporting the fixtures at the end beams of the vehicle's sleepers. Between the sleepers, jacks or similar devices are used to lift the underframe side beams, causing the middle of the car body to arch upwards. Simultaneously, tensioning tools such as bolts are used to pull the car body ends towards the ground from the underside. A hand-operated winch is then used to apply load, ensuring the underframe and car body support columns are tightly joined. This causes the outer portion of the car body to bend downwards, thus creating the car body deflection.

[0003] For carbon fiber vehicle bodies, the underframe side beams are closed-cavity structures, the number of underframe crossbeams is small and there are no attachment points, and the overall stiffness and hardness of carbon fiber vehicle body materials are lower than those of traditional material vehicle bodies, making them unsuitable for point tensioning, which can lead to problems such as local instability, deformation, and tearing; therefore, the above-mentioned deflection setting method is no longer applicable.

[0004] In summary, how to provide a deflection adjustment device applicable to carbon fiber vehicle bodies is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a vehicle body deflection adjustment device, which can adjust the deflection of the carbon fiber vehicle body by compressing the carbon fiber vehicle body from the inside.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vehicle body deflection adjustment device, comprising:

[0008] The first longitudinal beam extends along the length of the carbon fiber body;

[0009] The second longitudinal beam is used to press down on the lower surface of the carbon fiber vehicle body; the length direction of the second longitudinal beam is consistent with the length direction of the first longitudinal beam, and the height of the second longitudinal beam is adjustable and mounted on the upper part of the first longitudinal beam;

[0010] A pressure beam is used to press down on the side wall door of the carbon fiber vehicle body. The length of the pressure beam extends along the width of the carbon fiber vehicle body, and the height of the pressure beam is adjustable and mounted on the upper part of the first longitudinal beam.

[0011] A support assembly, one end of which is connected to the first longitudinal beam, and the other end of which is used to support the carbon fiber vehicle body from the bottom of the carbon fiber vehicle body; and the length direction of the support assembly is perpendicular to both the first longitudinal beam and the second longitudinal beam; the support height of the support assembly is adjustable.

[0012] Optionally, it also includes multiple support seats distributed along the length direction of the first longitudinal beam, multiple first height adjustment mechanisms, and multiple second height adjustment mechanisms;

[0013] The two ends of the support base are respectively connected to different first longitudinal beams, and one end of the first height adjustment mechanism is connected to the support base and the other end is connected to the second longitudinal beam;

[0014] The second height adjustment mechanism is spaced apart along the length of the first longitudinal beam; one end of the second height adjustment mechanism is connected to the first longitudinal beam, and the other end is connected to the pressure beam.

[0015] Optionally, both the first height adjustment mechanism and the second height adjustment mechanism include:

[0016] The first base is installed on the first longitudinal beam or the support seat;

[0017] The first connecting rod has one end connected to the first base;

[0018] The pressing part is provided with a bending structure, which is used to press the second longitudinal beam or the pressing beam downward;

[0019] A ratchet clamp, one end of which is connected to the other end of the first connecting rod, and the other end of the ratchet clamp is connected to the clamping part.

[0020] The surface of the clamping part that comes into contact with the second longitudinal beam or the pressure beam is provided with a protective pad. The protective pad is a sheet-like elastic structure to prevent damage to the second longitudinal beam or the pressure beam.

[0021] Optionally, the bending structure includes a contoured recess for engaging with the second longitudinal beam or the pressure beam, wherein the second longitudinal beam or the pressure beam is located within the contoured recess.

[0022] Optionally, the clamping part is provided with a pressure detection element, which is used to detect the pressure between the clamping part and the second longitudinal beam or the pressure beam.

[0023] Optionally, the support component includes:

[0024] The bolster beam support mechanism has one end connected to the first longitudinal beam and the other end used to abut against the lower surface of the bolster beam of the carbon fiber vehicle body to support the bolster beam.

[0025] A side beam support mechanism, one end of which is connected to the first longitudinal beam, and the other end of which is used to abut against the lower surface of the side beam of the carbon fiber vehicle body to support the side beam;

[0026] An end support mechanism, the lower surface of which is connected to the first longitudinal beam, and the upper surface of the end support mechanism is used to abut against the lower surfaces of both ends of the carbon fiber vehicle body in the length direction to support the ends of the carbon fiber vehicle body;

[0027] The support heights of the bolster beam support mechanism, the side beam support mechanism, and the end support mechanism are all adjustable.

[0028] Optionally, the first longitudinal beam is provided with a sliding groove, the length direction of which extends along the length direction of the first longitudinal beam, and the support base, the second height adjustment mechanism, the bolster beam support mechanism, the side beam support mechanism and the end support mechanism are all slidably arranged along the sliding groove.

[0029] Optionally, the bolster support mechanism includes a second base, a first telescopic support portion, and a first abutment portion. The first abutment portion is used to contact the surface of the bolster beam. One end of the first telescopic support portion is connected to the second base, and the other end is connected to the first abutment portion. The first telescopic support portion is used to adjust the support height of the bolster support mechanism.

[0030] The side beam support mechanism includes a third base, a second telescopic support part, and a second abutment part. The second abutment part is used to contact the surface of the side beam. One end of the second telescopic support part is connected to the third base, and the other end is connected to the second abutment part. The second telescopic support part is used to adjust the support height of the side beam support mechanism.

[0031] The end support mechanism includes a fourth base, a third telescopic support part, and a third abutment part. The third abutment part is used to make face-to-face contact with the lower surfaces of both ends of the carbon fiber vehicle body in the length direction. One end of the third telescopic support part is connected to the fourth base, and the other end is connected to the third abutment part. The third telescopic support part is used to adjust the support height of the end support mechanism.

[0032] Optionally, the surfaces of the first abutment portion that contact the bolster beam, the surfaces of the second abutment portion that contact the side beam, and the surfaces of the third abutment portion that contact the lower surfaces of both ends of the carbon fiber body along its length are all provided with anti-slip textures.

[0033] In practical use, the vehicle body deflection adjustment device provided by this utility model firstly draws a pre-fabricated deflection curve diagram according to the vehicle body structure and technical requirements. Then, the first longitudinal beam is installed, with its length direction aligned with the length direction of the carbon fiber vehicle body to be adjusted. Next, the support position and support height of the support assembly are adjusted according to the pre-fabricated deflection curve diagram to pre-fix the carbon fiber vehicle body. The second longitudinal beam is then installed, and its height is adjusted according to the pre-fabricated deflection curve diagram. The second longitudinal beam contacts the bottom surface inside the vehicle body, pressing down on the bottom surface of the carbon fiber vehicle body. A pressure beam is then installed, and its installation height is adjusted according to the pre-fabricated deflection curve diagram. The pressure beam contacts the bottom surface inside the vehicle body, pressing down on the side wall doorway of the carbon fiber vehicle body. The deflection of each precast deflection section is calibrated using a deflection measuring mechanism. If the deflection of all precast deflection sections in the carbon fiber vehicle body meets the deflection adjustment requirements, the positions of the pressure beam and the second longitudinal beam are fixed, and the height of the support components is fixed. If the deflection of any precast deflection section in the carbon fiber vehicle body does not meet the deflection adjustment requirements, adjustments are made to the unmet requirements until the deflection of all precast deflection sections in the carbon fiber vehicle body meets the deflection adjustment requirements.

[0034] Compared to existing technologies, the vehicle body deflection adjustment device provided by this utility model adjusts the deflection of the carbon fiber vehicle body in the length direction by pressing down the second longitudinal beam during actual use; and adjusts the deflection at the side wall door of the carbon fiber vehicle body by pressing down the pressure beam. Compared to the traditional tensioning method of adjusting deflection, the pressing method does not rely on the attachment point on the lower surface of the vehicle body and can be applied to the deflection adjustment of carbon fiber vehicles. Furthermore, the pressing method can effectively prevent the carbon fiber vehicle body from becoming unstable, deformed, or torn, and can effectively protect the integrity of the carbon fiber vehicle body. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 This is a prefabricated deflection distribution diagram for a specific embodiment of a carbon fiber vehicle body.

[0037] Figure 2 This is a prefabricated overall effect diagram of the deflection of a specific embodiment of a carbon fiber vehicle body.

[0038] Figure 3 This is an axonometric schematic diagram of the vehicle body deflection adjustment device provided by this utility model.

[0039] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0040] Figure 5 for Figure 3 A front view schematic diagram of the vehicle body deflection adjustment device provided in the diagram.

[0041] Figure 6 for Figure 3 A top-view schematic diagram of the vehicle body deflection adjustment device provided in the diagram.

[0042] Figure 7 for Figure 3 A side view of the vehicle body deflection adjustment device provided in the diagram.

[0043] Figure 8 This is a schematic diagram showing the relationship between the pressure beam 3 and the second height adjustment mechanism.

[0044] Figure 9 for Figure 8 Side view of the structure.

[0045] Figures 1-9 middle:

[0046] 1 is the first longitudinal beam, 2 is the second longitudinal beam, 3 is the pressure beam, 4 is the side beam support mechanism, 5 is the end support mechanism, 6 is the second height adjustment mechanism, 61 is the ratchet clamp, 62 is the clamping part, 63 is the first base, 64 is the first connecting rod; 7 is the support seat, 8 is the first height adjustment mechanism, and 9 is the carbon fiber body. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] The core of this utility model is to provide a vehicle body deflection adjustment device, which can adjust the deflection of the carbon fiber vehicle body by compressing the carbon fiber vehicle body from the inside.

[0049] This specific embodiment discloses a vehicle body deflection adjustment device, including a first longitudinal beam 1, a second longitudinal beam 2, a pressure beam 3, and a support assembly. The first longitudinal beam 1 extends along the length of the carbon fiber vehicle body 9. The second longitudinal beam 2 is used to press downwards against the lower surface inside the carbon fiber vehicle body 9. The length of the second longitudinal beam 2 is consistent with the length of the first longitudinal beam 1, and the second longitudinal beam 2 is height-adjustable and mounted on the upper part of the first longitudinal beam 1. The pressure beam 3 is used to press downwards against the side wall doorway of the carbon fiber vehicle body 9. The length of the pressure beam 3 extends along the width of the carbon fiber vehicle body 9, and the pressure beam 3 is height-adjustable and mounted on the upper part of the first longitudinal beam 1. One end of the support assembly is connected to the first longitudinal beam 1, and the other end of the support assembly is used to support the carbon fiber vehicle body 9 from the bottom. The length of the support assembly is perpendicular to both the first longitudinal beam 1 and the second longitudinal beam 2. The support height of the support assembly is adjustable.

[0050] In practical use, firstly, a deflection prefabrication curve is drawn according to the vehicle body structure and technical requirements. Then, the first longitudinal beam 1 is installed, with its length aligned with the length of the carbon fiber vehicle body 9 to be adjusted. Next, the support position and height of the support assembly are adjusted according to the deflection prefabrication curve to pre-fix the carbon fiber vehicle body 9. The second longitudinal beam 2 is then installed, and its height is adjusted according to the deflection prefabrication curve. The second longitudinal beam 2 contacts the bottom surface inside the vehicle body, pressing down on the bottom surface of the carbon fiber vehicle body 9. A pressure beam 3 is then installed, and its installation height is adjusted according to the deflection prefabrication curve. The pressure beam 3 contacts the bottom surface inside the vehicle body, pressing down on the side wall doorway of the carbon fiber vehicle body 9. The deflection of each precast deflection section is calibrated using a deflection measuring mechanism. If the deflection of all precast deflection sections in the carbon fiber car body 9 meets the deflection adjustment requirements, the positions of the pressure beam 3 and the second longitudinal beam 2 are fixed, and the height of the support assembly is fixed. If the deflection of any precast deflection section in the carbon fiber car body 9 does not meet the deflection adjustment requirements, adjustments are made to the unmet requirements until the deflection of all precast deflection sections in the carbon fiber car body 9 meets the deflection adjustment requirements.

[0051] like Figure 1 As shown, there are two first longitudinal beams 1, which are arranged in parallel. The first longitudinal beams 1 are mainly used to support and install structural components such as support components. The first longitudinal beams 1 can be set as profile structures or other structures that meet the requirements. The specific configuration depends on the actual situation and will not be elaborated here.

[0052] Furthermore, a fixing seat can be provided on the first longitudinal beam 1, and the first longitudinal beam 1 is fixed to the ground or test bench through the fixing seat.

[0053] It should be noted that, in this specific embodiment, the second longitudinal beam 2 can also be configured as follows: Figure 1The two longitudinal beams 2 shown are arranged in parallel. The distance between the two longitudinal beams 2 is less than the distance between the two first longitudinal beams 1. Although the second longitudinal beam 2 is located above the first longitudinal beam 1 in the height direction, the second longitudinal beam 2 is offset from the first longitudinal beam 1 and is not located directly above the first longitudinal beam 1.

[0054] In actual use, the second longitudinal beam 2 is set inside the carbon fiber body 9 along the length direction of the carbon fiber body 9, and the second longitudinal beam 2 contacts the underframe inside the carbon fiber body 9. By adjusting the installation height of the second longitudinal beam 2 relative to the first longitudinal beam 1, the underframe of the carbon fiber body 9 can be pressed tightly from inside the carbon fiber body 9, so as to achieve overall compression and constraint of the underframe of the carbon fiber body 9. This can avoid problems such as instability, deformation and tearing of the carbon fiber material structure caused by local constraint, and achieve a smooth transition of the body deflection.

[0055] The second longitudinal beam 2 can be made to have surface contact with the underframe of the carbon fiber vehicle body 9, and the length of the second longitudinal beam 2 is greater than or equal to the length of the underframe of the carbon fiber vehicle body 9. During the deflection adjustment process, the contact length between the second longitudinal beam 2 and the underframe of the carbon fiber vehicle body 9 can be extended as much as possible, thereby increasing the contact area between the second longitudinal beam 2 and the underframe of the carbon fiber vehicle body 9. The larger the contact area, the better it is to avoid the underframe of the carbon fiber vehicle body 9 from becoming unstable, deformed, or torn.

[0056] In this specific embodiment, the pressure beam 3 is arranged along the width direction of the carbon fiber vehicle body 9, mainly used to press down on the side wall doorway of the carbon fiber vehicle body 9. Furthermore, the length of the pressure beam 3 can be greater than or equal to the width of the carbon fiber vehicle body 9. In the actual pressing process, the pressure beam 3 spans across the side wall doorway of the carbon fiber vehicle body 9 to achieve pressing, without needing to hook and press the underframe of the carbon fiber vehicle body 9. Therefore, although there is no hook point at the side wall doorway of the carbon fiber vehicle body 9, since the pressure beam 3 is located on the upper part of the underframe of the carbon fiber vehicle body 9, the upper part of the underframe of the carbon fiber vehicle body 9 presses down on the upper part of the underframe of the carbon fiber vehicle body 9. Therefore, even without a hook point, the deflection at the side wall doorway of the underframe of the carbon fiber vehicle body 9 can still be adjusted.

[0057] Specifically, the pressure beam 3 can be set as a profile structure or other structures that meet the requirements.

[0058] To further increase the contact area between the pressure beam 3 and the underframe of the carbon fiber vehicle body 9, the pressure beam 3 and the doorway of the side wall of the underframe of the carbon fiber vehicle body 9 can be made to make full contact.

[0059] Compared to existing technologies, the vehicle body deflection adjustment device provided in this specific embodiment adjusts the deflection of the carbon fiber vehicle body 9 in the length direction by pressing down the second longitudinal beam 2 during actual use; and adjusts the deflection at the side wall door of the carbon fiber vehicle body 9 by pressing down the pressure beam 3. Compared to the traditional tensioning method of adjusting deflection, the pressing method does not rely on the attachment point on the lower surface of the vehicle body and can be applied to the deflection adjustment of the carbon fiber vehicle body 9. Furthermore, the pressing method can effectively prevent the carbon fiber vehicle body 9 from instability, deformation, tearing, and other problems, and can effectively protect the integrity of the carbon fiber vehicle body 9.

[0060] It should be noted that the height adjustment of the second longitudinal beam 2 and the pressure beam 3 in this specific embodiment can be achieved by combining the telescopic structure and the power structure to achieve automatic height adjustment, or by combining the telescopic structure and the locking mechanism to achieve manual adjustment of different heights. The specific method is determined according to the actual situation, and will not be elaborated here.

[0061] Based on the above embodiments, the vehicle body deflection adjustment device may include multiple support seats 7 distributed along the length direction of the first longitudinal beam 1, multiple first height adjustment mechanisms 8, and multiple second height adjustment mechanisms 6; the two ends of the support seats 7 are respectively connected to different first longitudinal beams 1, one end of the first height adjustment mechanism 8 is connected to the support seat 7, and the other end is connected to the second longitudinal beam 2; the second height adjustment mechanisms 6 are spaced apart along the length direction of the first longitudinal beam 1; one end of the second height adjustment mechanism 6 is connected to the first longitudinal beam 1, and the other end is connected to the pressure beam 3.

[0062] like Figure 1 As shown, there are two first longitudinal beams 1, which are arranged in parallel. One end of the support seat 7 is connected to one of the first longitudinal beams 1, and the other end of the support seat 7 is connected to the other first longitudinal beam 1. One end of the first height adjustment mechanism 8 is connected to the support seat 7, and the other end is used to press the second longitudinal beam 2 downward. By adjusting the height of the first height adjustment mechanism 8, the height of the second longitudinal beam 2 can be adjusted, thereby adjusting the pressing pressure of the second longitudinal beam 2.

[0063] In actual use, the height of the second longitudinal beam 2 can be adjusted by adjusting the first height adjustment mechanism 8, so as to achieve overall pressing of the second longitudinal beam 2 against the chassis of the carbon fiber vehicle body 9; the height of the pressure beam 3 can be adjusted by adjusting the second height adjustment mechanism 6, so as to adjust the deflection of the pressure beam 3 against the doorway of the side wall of the chassis of the carbon fiber vehicle body 9.

[0064] In this specific embodiment, multiple first height adjustment mechanisms 8 are provided. In actual use, different first height adjustment mechanisms 8 can be adjusted to make the clamping force at different positions of the second longitudinal beam 2 different, thereby achieving the adjustment of different deflection requirements at different positions of the carbon fiber vehicle body 9 chassis. Alternatively, different first height adjustment mechanisms 8 can be adjusted to make the clamping force at different positions of the second longitudinal beam 2 the same, so that the clamping force of the second longitudinal beam 2 acting on the chassis of the carbon fiber vehicle body 9 is evenly distributed. The specific method is determined according to the actual situation and will not be elaborated here.

[0065] In this specific embodiment, multiple second height adjustment mechanisms 6 are provided. In actual use, different second height adjustment mechanisms 6 can be adjusted to make different pressure beams 3 exert different pressures on the doorway of the side wall of the carbon fiber vehicle body 9's chassis. For the same pressure beam 3, the pressures on the two ends of the same pressure beam 3 exerted on the doorway of the side wall of the carbon fiber vehicle body 9's chassis can be made the same by adjusting the second height adjustment mechanism 6 connected to the same pressure beam 3.

[0066] In this specific embodiment, by setting the support base 7 and the first height adjustment mechanism 8, the installation height of the second longitudinal beam 2 can be adjusted, thereby adjusting the pressure of the second longitudinal beam 2 on the chassis of the carbon fiber vehicle body 9; by setting the second height adjustment mechanism 6, the installation height of the pressure beam 3 can be adjusted, thereby adjusting the pressure of the pressure beam 3 on the doorway of the side wall of the chassis of the carbon fiber vehicle body 9.

[0067] In one specific embodiment, both the first height adjustment mechanism 8 and the second height adjustment mechanism 6 may include a first base 63, a first connecting rod 64, a pressing part 62, and a ratchet clamping device 61. The first base 63 is mounted on the first longitudinal beam 1 or the support seat 7. One end of the first connecting rod 64 is connected to the first base 63. The pressing part 62 is provided with a bending structure, which is used to press down on the second longitudinal beam 2 or the pressure beam 3. One end of the ratchet clamping device 61 is connected to the other end of the first connecting rod 64, and the other end of the ratchet clamping device 61 is connected to the pressing part 62.

[0068] In actual use, the distance between the clamping part 62 and the first base 63 can be adjusted by the ratchet clamp 61, thereby adjusting the installation height of the second longitudinal beam 2 or the pressure beam 3.

[0069] A ratchet tensioner 61 is a tool that utilizes a ratchet mechanism to achieve a one-way locking function. It is commonly used to quickly tighten ropes, straps, or chains and maintain stable tension. Specifically, the ratchet tensioner 61 may include a ratchet mechanism, a handle or crank, a strap or chain, and a hook or connector. The ratchet mechanism consists of a gear-shaped ratchet and a spring-driven pawl, allowing unidirectional rotation. The handle or crank generates tension through reciprocating oscillation, gradually tightening the strap. The strap or chain is typically a high-strength nylon strap or metal chain used for binding objects. The hook or connector is fixed to both ends of the strap for connecting the fixed object.

[0070] In actual use, the clamping part 62 can be moved closer to or further away from the first connecting rod 64 by operating the handle or crank of the ratchet clamp 61, thereby adjusting the installation height of the second longitudinal beam 2 or the pressure beam 3, so as to adjust the clamping force of the second longitudinal beam 2 on the underframe of the carbon fiber car body 9 and the pressure of the pressure beam 3 on the doorway of the side wall of the underframe of the carbon fiber car body 9.

[0071] Of course, during the actual installation process, since the extension directions of the second longitudinal beam 2 and the pressure beam 3 are different, the orientation of the pressing part 62 can be adjusted according to actual needs during the actual setup process.

[0072] In one specific embodiment, a protective pad can be provided on the surface of the clamping part 62 that is in contact with the second longitudinal beam 2 or the pressure beam 3. The protective pad is a sheet-like elastic structure to avoid damage to the second longitudinal beam 2 or the pressure beam 3.

[0073] In practical use, to prevent damage to the second longitudinal beam 2 or pressure beam 3 caused by the downward pressure of the clamping part 62, a protective pad is provided on the surface of the clamping part 62 that contacts the second longitudinal beam 2 or pressure beam 3. The protective pad can be a rubber pad or a plastic pad, or other materials that meet the requirements, depending on the actual situation. The protective pad prevents direct contact between the clamping part 62 and the second longitudinal beam 2 or pressure beam 3, buffering the pressure of the clamping part 62 on the second longitudinal beam 2 or pressure beam 3, and effectively protecting the second longitudinal beam 2 or pressure beam 3.

[0074] In one specific embodiment, a guide groove extending along the length of the support base 7 and a locking mechanism mounted on the guide groove can be provided. The first height adjustment mechanism 8 is slidably disposed along the guide groove, and the locking mechanism is used to lock the first height adjustment mechanism 8, fixing the first height adjustment mechanism 8 in the position of the guide groove. By adjusting the position of the first height adjustment mechanism 8 in the guide groove, the position of the second longitudinal beam 2 can be adjusted, or the spacing between adjacent second longitudinal beams 2 can be adjusted, to accommodate the underframe of the carbon fiber body 9 with different widths.

[0075] Specifically, the locking mechanism can include a locking bolt and a clamping block. The clamping block is shaped to fit the guide groove and can be placed inside the guide groove. The first height adjustment mechanism 8 is provided with a threaded hole. The locking bolt is rotatably installed on the clamping block. In actual use, the first height adjustment mechanism 8 and the clamping block can be locked and fixed by tightening the locking bolt. The clamping block presses against the first height adjustment mechanism 8 to fix the position of the first height adjustment mechanism 8.

[0076] In this specific embodiment, by adjusting the installation position of the first height adjustment mechanism 8 on the support seat 7, the spacing between adjacent second longitudinal beams 2 can be adjusted to accommodate the deflection adjustment of carbon fiber vehicle bodies 9 with different widths.

[0077] Based on the above embodiments, the bending structure may include a contoured recess for cooperating with the second longitudinal beam 2 or the pressure beam 3, wherein the second longitudinal beam 2 or the pressure beam 3 is located within the contoured recess.

[0078] like Figure 8 As shown, the bending structure is provided with a contoured recess for cooperating with the profile structure. In actual use, the second longitudinal beam 2 or the pressure beam 3 can be placed in the contoured recess. The contoured recess cooperates with the second longitudinal beam 2 or the pressure beam 3 to make the second longitudinal beam 2 or the pressure beam 3 stably contact the carbon fiber body 9.

[0079] Furthermore, in order to accommodate second longitudinal beams 2 or pressure beams 3 of different sizes, a bending structure can be detachably installed on the clamping part 62. When the size of the second longitudinal beam 2 or pressure beam 3 changes, different bending structures can be used to adapt to different second longitudinal beams 2 or pressure beams 3.

[0080] Based on the above embodiments, in order to better adjust the clamping force of the clamping part 62 on the second longitudinal beam 2 or the pressure beam 3 and to standardize the pressure adjustment process, a pressure detection element can be provided on the clamping part 62. The pressure detection element is used to detect the pressure between the clamping part 62 and the second longitudinal beam 2 or the pressure beam 3.

[0081] In actual use, the pressure value detected by the pressure detection device can be used to determine the pressing condition of the pressing part 62 on the second longitudinal beam 2 or the pressure beam 3, and the pressure value detected by the pressure detection device can also be used to determine the trend of deflection adjustment.

[0082] In this specific embodiment, the pressure detection element can be set as a pressure sensor or other pressure detection device that meets the requirements, depending on the actual situation.

[0083] In one specific embodiment, the support assembly includes a bolster beam support mechanism, a side beam support mechanism 4, and an end support mechanism 5; wherein, one end of the bolster beam support mechanism is connected to the first longitudinal beam 1, and the other end is used to abut against the lower surface of the bolster beam of the carbon fiber vehicle body 9 to support the bolster beam; one end of the side beam support mechanism 4 is connected to the first longitudinal beam 1, and the other end is used to abut against the lower surface of the side beam of the carbon fiber vehicle body 9 to support the side beam; the lower surface of the end support mechanism 5 is connected to the first longitudinal beam 1, and the upper surface of the end support mechanism 5 is used to abut against the lower surfaces of both ends of the carbon fiber vehicle body 9 in the length direction to support the ends of the carbon fiber vehicle body 9; the support heights of the bolster beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5 are all adjustable.

[0084] In practical use, the bolster beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5 can be installed onto the first longitudinal beam 1. The support height of each part of the bolster beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5 can be adjusted according to the deflection adjustment requirements of the carbon fiber car body 9 to be adjusted, so that the bolster beam support mechanism can effectively support the bolster beam of the carbon fiber car body 9, the side beam support mechanism 4 can effectively support the side beam of the carbon fiber car body 9, and the end support mechanism 5 can effectively support the lower surfaces of both ends of the carbon fiber car body 9 in the length direction.

[0085] It should be noted that in this specific embodiment, the adjustment of the support height of the pillow beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5 can be achieved through the cooperation of the lead screw and the threaded hole, or through the telescopic structure, or through the adjustment mechanism that can be relatively close to or far away. The specific method is determined according to the actual situation, and will not be elaborated here.

[0086] When the structure of the carbon fiber car body 9 changes and the positions of the bolster beam and side beam are adjusted, the bolster beam support mechanism, side beam support mechanism 4, and end support mechanism 5 in this specific embodiment can also be used to support other parts of the carbon fiber car body 9. Alternatively, by adjusting the installation position of the bolster beam support mechanism, side beam support mechanism 4, and end support mechanism 5 on the first longitudinal beam 1, support for different carbon fiber car bodies 9 can be achieved. The specific details are determined according to the actual situation and will not be elaborated here.

[0087] In this specific embodiment, by setting the bolster beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5, effective support can be achieved for the bolster beam, side beam, and end of the carbon fiber car body 9, providing effective support when the second longitudinal beam 2 and the pressure beam 3 press down on the carbon fiber car body 9, avoiding accidental deformation of the carbon fiber car body 9, and effectively ensuring the stability of the carbon fiber car body 9 during the deflection adjustment process.

[0088] In one specific embodiment, a slide groove can be provided on the first longitudinal beam 1, with the length direction of the slide groove extending along the length direction of the first longitudinal beam 1. The support base 7, the second height adjustment mechanism 6, the pillow beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5 are all slidably arranged along the slide groove.

[0089] In actual use, when the width dimension of the carbon fiber body 9 changes, the spacing between adjacent second longitudinal beams 2 can be adjusted by adjusting the installation position of the first height adjustment mechanism 8 on the support seat 7, so as to adapt to carbon fiber body 9 with different width dimensions.

[0090] When the length of the carbon fiber body 9 changes, in order to enable the second longitudinal beam 2 to effectively contact the carbon fiber body 9, the position of the support seat 7 in the groove of the first longitudinal beam 1 can be adjusted so that the support seat 7 can effectively support the first height adjustment mechanism 8, and prevent the second longitudinal beam 2 connected to the first height adjustment mechanism 8 from bending or deforming during the pressing process, so as to adapt to the adjustment of the deflection of the carbon fiber body 9 with different lengths.

[0091] When the position of the side wall doorway in the underframe of the carbon fiber vehicle body 9 changes, the installation position of the second height adjustment mechanism 6 on the first longitudinal beam 1 can be adjusted, thereby adjusting the position of the pressure beam 3 connected to the second height adjustment mechanism 6, so that the pressure beam 3 cooperates with the side wall doorway in the underframe of the carbon fiber vehicle body 9 to press against the side wall doorway in the underframe of the carbon fiber vehicle body 9, adapting to changes in the position of the side wall doorway in the underframe of the carbon fiber vehicle body 9.

[0092] When the position of the bolster beam of the carbon fiber car body 9 changes, the installation position of the bolster beam support mechanism on the first longitudinal beam 1 can be adjusted so that the bolster beam support mechanism corresponds to the position of the bolster beam of the carbon fiber car body 9, thereby supporting the bolster beam of the carbon fiber car body 9 and adapting to changes in the position of the bolster beam of the carbon fiber car body 9.

[0093] When the position of the side beam of the carbon fiber vehicle body 9 changes, the installation position of the side beam support mechanism 4 on the first longitudinal beam 1 can be adjusted so that the side beam support mechanism 4 corresponds to the position of the side beam of the carbon fiber vehicle body 9, thereby supporting the side beam of the carbon fiber vehicle body 9 and adapting to the situation where the position of the side beam of the carbon fiber vehicle body 9 changes.

[0094] When the length of the carbon fiber body 9 changes, the installation position of the end support mechanism 5 on the first longitudinal beam 1 can be adjusted so that the end support mechanism 5 corresponds to the lower surfaces of both ends of the carbon fiber body 9 in the length direction, thereby supporting the lower surfaces of both ends of the carbon fiber body 9 in the length direction and adapting to changes in the length of the carbon fiber body 9.

[0095] In this specific embodiment, by slidably arranging the support base 7, the second height adjustment mechanism 6, the bolster beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5 along the slide groove on the first longitudinal beam 1, the installation positions of the support base 7, the second height adjustment mechanism 6, the bolster beam support mechanism, the side beam support mechanism 4, and the end support mechanism 5 on the first longitudinal beam 1 can be adjusted. This adapts to changes in the length and width of the carbon fiber car body 9, the position of the side wall door in the chassis of the carbon fiber car body 9, the position of the bolster beam, and the position of the side beam, effectively improving the adaptability of the car body deflection adjustment device to carbon fiber car bodies 9 of different sizes.

[0096] Based on the above embodiments, the bolster support mechanism can include a second base, a first telescopic support part, and a first abutment part. The first abutment part is used to contact the surface of the bolster beam. One end of the first telescopic support part is connected to the second base, and the other end is connected to the first abutment part. The first telescopic support part is used to adjust the support height of the bolster support mechanism.

[0097] The side beam support mechanism 4 includes a third base, a second telescopic support part, and a second abutment part. The second abutment part is used to contact the side beam surface. One end of the second telescopic support part is connected to the third base, and the other end is connected to the second abutment part. The second telescopic support part is used to adjust the support height of the side beam support mechanism 4.

[0098] The end support mechanism 5 includes a fourth base, a third telescopic support part, and a third abutment part. The third abutment part is used to make face-to-face contact with the lower surfaces of both ends of the carbon fiber vehicle body 9 in the length direction. One end of the third telescopic support part is connected to the fourth base, and the other end is connected to the third abutment part. The third telescopic support part is used to adjust the support height of the end support mechanism 5.

[0099] In this specific embodiment, the first, second, and third telescopic support parts can be configured as telescopic components including a nested tube, a locking device, and a guiding structure. Specifically, the nested tube can include multiple telescopic concentric tubes or rods; the locking device includes a tightening bolt, a quick-release handle, and a spring pin; the tightening bolt is fixed by pressing the inner tube's outer wall or a groove. The quick-release handle integrates an eccentric wheel or cam mechanism, enabling quick locking with a single handle. The spring pin is inserted into a preset hole for fixation. The guiding structure consists of a guide recess and a guide protrusion located on the inner or outer wall of the nested tube to restrict circumferential rotation during the extension and retraction of the nested tube.

[0100] Of course, the first telescopic support, the second telescopic support, and the third telescopic support mentioned in this specific embodiment can also be configured in other structural forms, depending on the actual situation, and will not be elaborated here.

[0101] In this specific embodiment, the first abutment part and the bolster beam, the second abutment part and the side beam, and the third abutment part and the lower surfaces of both ends of the carbon fiber body 9 along the length direction are all in surface-to-surface contact. This surface-to-surface contact arrangement can effectively increase the contact area between the first abutment part and the bolster beam, the second abutment part and the side beam, and the third abutment part and the lower surfaces of both ends of the carbon fiber body 9 along the length direction, thereby reducing the pressure on the contact surfaces. This effectively adapts to the relatively soft characteristics of the carbon fiber body 9 material, avoids tearing or damage to the carbon fiber body 9 due to the supporting force during the support process, and effectively protects the carbon fiber body 9 and maintains its integrity.

[0102] Based on the above embodiments, the surfaces of the first abutment portion that are in contact with the bolster beam, the surfaces of the second abutment portion that are in contact with the side beam, and the surfaces of the third abutment portion that are in contact with the lower surfaces of both ends of the carbon fiber body 9 in the length direction can all be provided with anti-slip textures.

[0103] The anti-slip texture effectively increases the friction between the surfaces in the first abutment part that contact the bolster beam, the surfaces in the second abutment part that contact the side beam, and the surfaces in the third abutment part that contact the lower surfaces at both ends of the carbon fiber body 9 along its length. This prevents relative movement between these surfaces and effectively improves the stability of the structure during deflection adjustment.

[0104] The specific operating steps for using the vehicle body deflection adjustment device provided by this utility model are as follows:

[0105] Step S1: Draw the deflection prefabrication curve;

[0106] In step S1, during the process of drawing the deflection prefabrication curve, the deflection support seat 7 at the center of the bolster beam air spring is used as the reference. The deflection reference inside the bolster is set as 0 point. The lower plane of the bottom frame side beam inside the bolster beam is higher than the position of the bolster beam, and the lower plane of the bottom frame side beam outside the bolster beam is lower than the position of the bolster beam. The bottom frame is in a smooth, upward arch shape and there should be no abrupt changes.

[0107] Step S2: Adjust the support position and support height of the support components according to the deflection prefabrication curve diagram;

[0108] Step S3: Install the second longitudinal beam 2 and adjust the height of the second longitudinal beam 2 according to the deflection prefabrication curve.

[0109] Step S4: Install the pressure beam 3 and adjust the installation height of the pressure beam 3 according to the deflection prefabrication curve.

[0110] In step S4, the pressure beam 3 is placed on the upper part of the second longitudinal beam 2. In principle, two sets of pressure beams 3 are configured at the door of each side wall. The pressure beams 3 are symmetrically distributed along the lower side beam support at each door. The spacing is determined according to the position of the tensioner on site to ensure that the side beam of the underframe is tightened synchronously with the tensioners on the left and right sides of the vehicle body during the pulling operation, avoiding pulling off the side and forming an overall pressure on the underframe.

[0111] Step S5: The deflection of each prefabricated deflection section is calibrated using a deflection measuring mechanism.

[0112] In step S5, the zero point, center deflection, in-column deflection, and end sag of the bolster beam are calibrated using a deflection measuring device based on the deflection prefabrication curve, to ensure that the vehicle body deflection meets the design requirements.

[0113] Step S6: Determine whether the deflection of all pre-fabricated deflection parts in the carbon fiber vehicle body 9 meets the deflection adjustment requirements; if yes, fix the position of the pressure beam 3 and the second longitudinal beam 2 and fix the height of the support assembly; if no, return to the step of adjusting the support position and support height of the support assembly according to the deflection pre-fabricated curve diagram.

[0114] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.

[0115] The vehicle body deflection adjustment device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A vehicle body deflection adjusting device characterized by comprising: include: The first longitudinal beam (1) extends along the length direction of the carbon fiber body (9); The second longitudinal beam (2) is used to press down on the lower surface inside the carbon fiber body (9); the length direction of the second longitudinal beam (2) is consistent with the length direction of the first longitudinal beam (1), and the second longitudinal beam (2) is mounted on the upper part of the first longitudinal beam (1) with adjustable height. The pressure beam (3) is used to press down on the side wall door of the carbon fiber vehicle body (9). The length direction of the pressure beam (3) extends along the width direction of the carbon fiber vehicle body (9). The pressure beam (3) is mounted on the upper part of the first longitudinal beam (1) with adjustable height. A support assembly, one end of which is connected to the first longitudinal beam (1), and the other end of which is used to support the carbon fiber vehicle body (9) from the bottom; and the length direction of the support assembly is perpendicular to both the first longitudinal beam (1) and the second longitudinal beam (2); the support height of the support assembly is adjustable.

2. The car body deflection adjusting device according to claim 1, characterized by It also includes multiple support seats (7) distributed along the length direction of the first longitudinal beam (1), multiple first height adjustment mechanisms (8) and multiple second height adjustment mechanisms (6); The two ends of the support base (7) are respectively connected to different first longitudinal beams (1), and one end of the first height adjustment mechanism (8) is connected to the support base (7) and the other end is connected to the second longitudinal beam (2). The second height adjustment mechanism (6) is spaced apart along the length of the first longitudinal beam (1); one end of the second height adjustment mechanism (6) is connected to the first longitudinal beam (1), and the other end is connected to the pressure beam (3).

3. The car body deflection adjusting device according to claim 2, characterized by Both the first height adjustment mechanism (8) and the second height adjustment mechanism (6) include: The first base (63) is installed on the first longitudinal beam (1) or the support seat (7); The first link (64) has one end connected to the first base (63). The pressing part (62) is provided with a bending structure, which is used to press down the second longitudinal beam (2) or the pressing beam (3). A ratchet clamp (61) is connected at one end to the other end of the first connecting rod (64), and the other end of the ratchet clamp (61) is connected to the clamping part (62).

4. The car body deflection adjusting device according to claim 3, characterized by The surface of the clamping part (62) that is in contact with the second longitudinal beam (2) or the pressure beam (3) is provided with a protective pad. The protective pad is a sheet-like elastic structure to avoid damage to the second longitudinal beam (2) or the pressure beam (3).

5. The vehicle body deflection adjustment device according to claim 3, characterized in that, The bending structure includes a contoured recess for cooperating with the second longitudinal beam (2) or the pressure beam (3), wherein the second longitudinal beam (2) or the pressure beam (3) is located within the contoured recess.

6. The vehicle body deflection adjusting apparatus according to claim 3, characterized by The clamping part (62) is provided with a pressure detection element, which is used to detect the pressure between the clamping part (62) and the second longitudinal beam (2) or the pressure beam (3).

7. The vehicle body deflection adjusting apparatus according to claim 2, characterized by The support components include: The bolster beam support mechanism has one end connected to the first longitudinal beam (1) and the other end used to abut against the lower surface of the bolster beam of the carbon fiber vehicle body (9) to support the bolster beam. Side beam support mechanism (4), one end of which is connected to the first longitudinal beam (1), and the other end is used to abut against the lower surface of the side beam of the carbon fiber vehicle body (9) to support the side beam; An end support mechanism (5) has its lower surface connected to the first longitudinal beam (1). The upper surface of the end support mechanism (5) is used to abut against the lower surfaces of both ends of the carbon fiber vehicle body (9) in the length direction to support the ends of the carbon fiber vehicle body (9). The support heights of the pillow beam support mechanism, the side beam support mechanism (4), and the end support mechanism (5) are all adjustable.

8. The car body deflection adjusting device according to claim 7, characterized by The first longitudinal beam (1) is provided with a sliding groove, the length direction of which extends along the length direction of the first longitudinal beam (1). The support seat (7), the second height adjustment mechanism (6), the pillow beam support mechanism, the side beam support mechanism (4) and the end support mechanism (5) are all slidably arranged along the sliding groove.

9. The vehicle body deflection adjusting apparatus according to claim 7, characterized by The bolster support mechanism includes a second base, a first telescopic support part, and a first abutment part. The first abutment part is used to contact the surface of the bolster. One end of the first telescopic support part is connected to the second base, and the other end is connected to the first abutment part. The first telescopic support part is used to adjust the support height of the bolster support mechanism. The side beam support mechanism (4) includes a third base, a second telescopic support part and a second abutment part. The second abutment part is used to contact the side beam surface. One end of the second telescopic support part is connected to the third base and the other end is connected to the second abutment part. The second telescopic support part is used to adjust the support height of the side beam support mechanism (4). The end support mechanism (5) includes a fourth base, a third telescopic support part and a third abutment part. The third abutment part is used to make face-to-face contact with the lower surfaces of both ends of the carbon fiber vehicle body (9) in the length direction. One end of the third telescopic support part is connected to the fourth base and the other end is connected to the third abutment part. The third telescopic support part is used to adjust the support height of the end support mechanism (5).

10. The vehicle body deflection adjusting apparatus according to claim 9, characterized by The surfaces of the first abutting part that are in contact with the pillow beam, the surfaces of the second abutting part that are in contact with the side beam, and the surfaces of the third abutting part that are in contact with the lower surfaces of both ends of the carbon fiber body (9) in the length direction are all provided with anti-slip textures.

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