High-strength torsion-resistant frame assembly

Abstract

The present invention discloses a high-strength anti-torsion frame assembly, a vehicle body middle section, a vehicle body front section and a vehicle body rear section. During use of the present invention, the first front section anti-torsion arm and the second front section anti-torsion arm installed in sequence can enhance the integrated locking effect between adjacent vehicle body front sections, so that when the frame is subjected to a lateral impact, the impact energy can be guided from one group of vehicle body front sections to another group of vehicle body front sections through the first front section anti-torsion arm and the second front section anti-torsion arm, so that the impact energy is released in a balanced manner, and the torsion resistance of the vehicle body front section is further improved. The open setting of the through-rib groove can enhance the longitudinal torsion resistance of the vehicle body middle section. At the same time, the middle section arc-shaped cross arm arranged in the through-rib groove area can enhance the lateral torsion resistance of the two groups of vehicle body middle sections when the vehicle body middle section is subjected to a collision from both sides. At the same time, the middle section arc-shaped cross arm guides the impact energy from one group of vehicle body middle sections to another group of vehicle body middle sections, and the torsion resistance of the vehicle body middle section is improved.

Description

Technical Field

[0001] The invention relates to the technical field of frame assembly processing anti-torsion, in particular to a high-strength anti-torsion frame assembly. Background Art

[0002] The frame is a frame structure that spans the front and rear axles of the car, commonly known as the beam, and is the base of the car. It is generally composed of two longitudinal beams and several cross beams, and is supported on the wheels through the suspension device, the front axle, and the rear axle. The frame must have sufficient strength and rigidity to withstand the load of the car and the impact from the wheels. The function of the frame is to support and connect the various assemblies of the car, so that each assembly maintains a relatively correct position, and withstands various loads inside and outside the car.

[0003] Most modern cars have a frame as the skeleton of the whole vehicle. Most of the parts and assemblies of the car are fixed by the frame, such as the engine, transmission system, suspension, steering system, cab, cargo box and related operating mechanisms. The frame supports and connects the various parts of the car and bears various loads from inside and outside the car.

[0004] The structural form of the frame should first meet the requirements of the overall layout of the vehicle. During the complex driving process of the vehicle, there should be no interference between the assemblies and components fixed on the frame. When the vehicle is driving on a rough road, the frame may produce torsional deformation and bending deformation in the longitudinal plane under the action of load; when one wheel encounters an obstacle, the entire frame may be twisted into a diamond shape. These deformations will change the relative positions of the components installed on the frame, thereby affecting their normal operation. Therefore, the frame should also have sufficient strength and appropriate rigidity. In order to improve the lightweight level of the entire vehicle, the frame mass is required to be as small as possible. In addition, the frame should be arranged closer to the ground to lower the center of gravity of the vehicle, which is conducive to improving the driving stability of the vehicle. This is especially important for buses and cars.

[0005] The purpose of the frame's torsion resistance is to cope with forces such as load bending, non-horizontal torsion, lateral bending and horizontal diamond torsion.

[0006] In the prior art, a segmented high-strength frame structure frame disclosed in the publication number "CN205737703U" includes a frame frame, a front frame and a rear frame. The frame frame includes two parallel longitudinal beams with a box-shaped cross section, and four cross beams perpendicular to the longitudinal beams are unevenly distributed between the two longitudinal beams. One of the cross beams is arranged at the front end of the two longitudinal beams as the first cross beam, and a tail beam reinforcement plate is arranged at the rear end of the two longitudinal beams. The front frame is a trapezoidal flexible riveted frame with a wide front and a narrow rear, and the rear frame is an equal-width flexible riveted frame. The front frame and the rear frame are fixed in sequence from front to back under the frame frame through a connecting plate. The beneficial effects of the utility model are: it can reduce the height of the upper body, can carry 40 tons of large-scale special equipment for oil fields, has high strength, high bending resistance and torsional rigidity, and has the characteristics of uniform force distribution at various positions of the frame.

[0007] However, the existing technology still has major deficiencies, such as:

[0008] In the above device and prior art:

[0009] 1. The setting of the segmented frame facilitates the production steps of the modular frame. However, after the frame is installed, the front, middle and rear sections of the frame need to cope with different torsional forces. However, it is difficult to make targeted torsional settings for the front, middle and rear sections of the segmented frame in the prior art, which easily leads to unbalanced torsional settings of the front and rear sections, affecting the service life of the frame assembly.

[0010] 2. There are fewer torsion-resistant settings for the middle section of the frame. When the vehicle encounters a front or rear impact, due to the difference between front and rear engine placement, the end with the engine usually uses the engine sinking and material energy absorption and collapse method to absorb energy and buffer. Insufficient torsion resistance in the middle section of the frame will directly lead to excessive deformation of the middle section of the frame assembly, resulting in deformation of the cockpit area, making it impossible to open the doors and sunroof normally. Summary of the invention

[0011] The object of the present invention is to provide a high-strength torsion-resistant frame assembly to solve the problems raised in the above-mentioned background technology.

[0012] To achieve the above object, the present invention provides the following technical solution: a high-strength anti-torsion frame assembly, comprising a vehicle body middle section, a vehicle body front section and a vehicle body rear section, wherein the vehicle body front section and the vehicle body rear section are respectively installed at two ends of the vehicle body middle section, a first arc angle is provided at a connection area between the vehicle body front section and the vehicle body middle section, and a second arc angle is provided at a connection area between the vehicle body rear section and the vehicle body middle section;

[0013] It also includes a front section torsion-resistant unit, which is arranged on the front section of the vehicle body and is used to enhance the torsion-resistant effect of the front section of the vehicle body and enhance the lateral torsion-resistant rigidity of the front section of the vehicle frame;

[0014] It also includes a rear section anti-torsion unit, which is arranged in the rear section area of ​​the vehicle body and is used to enhance the anti-torsion effect of the rear section of the vehicle body. In the event of a collision, it can reduce the energy absorption and collapse of the rear section of the vehicle body and ensure the safety of the rear row of the vehicle.

[0015] Preferably, the front section anti-torsion unit includes a reinforcing cross bar, a front section cavity is provided inside the front section of the vehicle body, a cross bar mounting hole is opened at one end of the front section of the vehicle body, the reinforcing cross bar is installed at one end of the front section of the vehicle body through the cross bar mounting hole, so that the adjacent front sections of the vehicle body are integrated and fixed, and a bottom groove is provided in the bottom area of ​​the front section of the vehicle body, and the first front section anti-torsion arm and the second front section anti-torsion arm are installed in sequence in the bottom groove area, and both ends of the first front section anti-torsion arm and the second front section anti-torsion arm are fixed to the two groups of the bottom grooves.

[0016] Preferably, the length of the second front section anti-torsion arm is greater than the length of the first front section anti-torsion arm.

[0017] Preferably, a front section fixing ear is installed at one end of the front section of the vehicle body, and the front section fixing ears are arranged in two groups.

[0018] Preferably, the rear section anti-torsion unit includes a rear section fork arm, and the rear section fork arm is provided in two groups. The two groups of the rear section fork arms are respectively mounted on the two groups of the rear sections of the vehicle body, and the two groups of the rear section fork arms are fixed by a rear section locking arm. The rear section fork arm is arranged in an arc shape, and a rear section cavity is arranged in the rear section of the vehicle body. A strip groove is arranged through the rear section of the vehicle body near the rear section cavity area, a rear section support arm is arranged in the second arc angle area, a reinforcing rib groove is arranged inside the rear section support arm, a first mounting ear is installed on one side of the rear section of the vehicle body, a first hanging hole is arranged on the first mounting ear, and a rear section fixing ear is installed at one end of the rear section of the vehicle body.

[0019] Preferably, a first rear section reinforcing rib plate is installed on one side of the rear section support arm close to the strip groove, and a second rear section reinforcing rib plate is installed on the other side of the rear section support arm.

[0020] Preferably, five groups of the strip-shaped grooves are arranged on each group of the rear section of the vehicle body, and the five groups of the strip-shaped grooves are arranged at intervals.

[0021] Preferably, a middle section anti-torsion unit is provided on the middle section of the vehicle body.

[0022] Preferably, the middle section anti-torsion unit includes a middle section arc-shaped cross arm, and the middle section arc-shaped cross arm is spaced apart into three groups. A through rib groove is provided on the surface of the middle section of the vehicle body, and the through rib groove runs through the middle section of the vehicle body. Both ends of the middle section arc-shaped cross arm are respectively inserted into two groups of through rib grooves, and one end of the middle section arc-shaped cross arm passes through the through rib groove. A locking plate is installed on the outer side of the middle section of the vehicle body, and locking holes are spaced apart on the locking plate. One end of the middle section arc-shaped cross arm is fixedly inserted into the locking hole, and the locking holes are spaced apart into three groups.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The arrangement of the reinforcing cross bar at the end of the front section of the vehicle body can enhance the lateral torsional pressure resistance of the front section of the vehicle body. Meanwhile, the first front section torsion arm and the second front section torsion arm sequentially installed at the bottom area of ​​the front section of the vehicle body can further enhance the lateral torsional pressure resistance of the bottom area of ​​the front section of the vehicle body. Meanwhile, the first front section torsion arm and the second front section torsion arm sequentially installed can enhance the integrated locking effect between adjacent front sections of the vehicle body, so that when the frame is subjected to a lateral impact, the impact energy can be guided from one group of front sections of the vehicle body to another group of front sections of the vehicle body through the first front section torsion arm and the second front section torsion arm, so that the impact energy is released in a balanced manner, the impact on the single-side frame is reduced, and the torsion resistance of the front section of the vehicle body is further improved;

[0025] 2. The rear fork arms on the rear section of the vehicle body are installed in the strip groove area. The rear fork arms installed on the rear section of the vehicle body can be added according to the required modification of the vehicle body to enhance the performance of the rear section of the vehicle body in resisting lateral torsional pressure. At the same time, when the rear section of the vehicle body is hit by a rear-end collision and the rear section of the vehicle body produces energy absorption and collapse, the spaced rear fork arms can lock and support the two groups of the rear section of the vehicle body to slow down the energy absorption and collapse of the rear section of the vehicle body, while ensuring the longitudinal torsional resistance of the rear section of the vehicle body;

[0026] 3. A through rib groove is provided on the surface of the middle section of the vehicle body for installing the middle section arc-shaped cross arm. The open setting of the through rib groove can enhance the longitudinal torsional resistance of the middle section of the vehicle body. At the same time, the middle section arc-shaped cross arm provided in the through rib groove area can enhance the lateral torsional pressure resistance of the two groups of middle sections of the vehicle body when the middle section of the vehicle body is hit from both sides. At the same time, the middle section arc-shaped cross arm guides the impact energy from one group of the middle section of the vehicle body to the other group of the middle section of the vehicle body, thereby further reducing the impact on the single-side frame and improving the torsional resistance of the middle section of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of the device of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall explosion state of the device of the present invention;

[0029] Figure 3This is a schematic diagram of the rear fixing ear portion of the present invention;

[0030] Figure 4 It is a schematic diagram of the through rib groove and the middle arc-shaped cross arm in the present invention;

[0031] Figure 5 It is a schematic diagram of the rear support arm portion of the present invention;

[0032] Figure 6 It is a schematic diagram of the locking plate and the second front section anti-torsion arm in the present invention;

[0033] Figure 7 It is a partial schematic diagram of the first front section anti-torsion arm and the locking socket in the present invention;

[0034] Figure 8 It is a schematic diagram of the bottom groove and the reinforced cross bar of the present invention.

[0035] In the figure: 1, middle section of the vehicle body; 11, middle section cavity; 12, reinforcement hole; 13, second mounting ear; 14, second hanging hole; 15, through rib groove; 16, middle section arc-shaped horizontal arm; 17, locking plate; 18, locking socket; 2, front section of the vehicle body; 21, bottom groove; 22, first front section anti-torsion arm; 23, second front section anti-torsion arm; 24, front section fixing ear; 25, front section cavity; 26, first arc angle; 27, cross bar mounting hole; 3, rear section of the vehicle body; 31, rear section fixing ear; 32, rear section cavity; 33, strip groove; 34, rear section fork arm; 35, rear section locking arm; 37, first mounting ear; 38, first hanging hole; 39, second arc angle; 4, reinforced cross bar; 5, rear section support arm; 51, first rear section reinforcing rib plate; 52, second rear section reinforcing rib plate; 53, reinforcing rib groove. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-8 , the present invention provides a technical solution:

[0038] Embodiment 1: A high-strength anti-torsion frame assembly comprises a vehicle body middle section 1, a vehicle body front section 2 and a vehicle body rear section 3, wherein the vehicle body front section 2 and the vehicle body rear section 3 are respectively mounted at two ends of the vehicle body middle section 1, a first arc angle 26 is provided at a connection area between the vehicle body front section 2 and the vehicle body middle section 1, and a second arc angle 39 is provided at a connection area between the vehicle body rear section 3 and the vehicle body middle section 1;

[0039] A middle section cavity 11 is arranged inside the middle section 1 of the vehicle body, and reinforcement holes 12 are arranged on the surface of the middle section 1 of the vehicle body. Eight groups of reinforcement holes 12 are arranged at intervals on each group of the middle section 1 of the vehicle body, and the eight groups of reinforcement holes 12 are symmetrically arranged along the central area of ​​the middle section 1 of the vehicle body. A second mounting ear 13 is installed on the outer side of the middle section 1 of the vehicle body, and a second hanging hole 14 is installed on the second mounting ear 13.

[0040] In this embodiment, the front cavity 25, the middle cavity 11 and the rear cavity 32 are connected. The setting of the cavity can reduce the deadweight of each part of the frame. At the same time, the setting of the cavity can enhance the anti-torsion effect of the middle section 1, the front section 2 and the rear section 3 of the vehicle body. At the same time, the setting of the first arc angle 26 and the second arc angle 39 enables the anti-torsion effect of the middle section 1, the front section 2 and the rear section 3 of the vehicle body to withstand greater longitudinal torsional pressure and maintain the anti-torsion balance of the front and rear sections. The surface of the middle section 1 of the vehicle body is provided with through ribs. The groove 15 is used to install the middle arc-shaped cross arm 16. The open setting of the through-rib groove 15 can enhance the longitudinal torsional resistance of the middle section 1 of the vehicle body. At the same time, the middle arc-shaped cross arm 16 arranged in the through-rib groove 15 area can enhance the lateral torsional pressure resistance of the two groups of middle sections 1 of the vehicle body when the middle section 1 of the vehicle body is hit from both sides. At the same time, the middle arc-shaped cross arm 16 guides the impact energy from one group of middle sections 1 of the vehicle body to the other group of middle sections 1 of the vehicle body, further reducing the impact on the single-side frame and improving the torsional resistance of the middle section 1 of the vehicle body.

[0041] It also includes a front section torsion-resistant unit, which is arranged on the front section 2 of the vehicle body and is used to enhance the torsion-resistant effect of the front section 2 of the vehicle body and enhance the lateral torsion-resistant rigidity of the front section of the frame;

[0042] The front section anti-torsion unit includes a reinforcing cross bar 4, a front section cavity 25 is provided inside the front section 2 of the vehicle body, a cross bar mounting hole 27 is opened at one end of the front section 2 of the vehicle body, and the reinforcing cross bar 4 is installed at one end of the front section 2 of the vehicle body through the cross bar mounting hole 27, so that the adjacent front sections 2 of the vehicle body are fixed in an integrated manner, and a bottom groove 21 is provided in the bottom area of ​​the front section 2 of the vehicle body, and the first front section anti-torsion arm 22 and the second front section anti-torsion arm 23 are installed in sequence in the area of ​​the bottom groove 21, and both ends of the first front section anti-torsion arm 22 and the second front section anti-torsion arm 23 are fixed to the two groups of bottom grooves 21.

[0043] The length of the second front section anti-torsion arm 23 is greater than the length of the first front section anti-torsion arm 22 .

[0044] A front section fixing ear 28 is installed at one end of the vehicle body front section 2, and the front section fixing ear 28 is arranged in two groups.

[0045] In this embodiment, the arrangement of the reinforcing cross bar 4 at the end of the front section 2 of the vehicle body can enhance the lateral torsional pressure resistance of the front section 2 of the vehicle body. At the same time, the first front section anti-torsion arm 22 and the second front section anti-torsion arm 23 installed in sequence in the bottom area of ​​the front section 2 of the vehicle body can further enhance the lateral torsional pressure resistance of the bottom area of ​​the front section 2 of the vehicle body. At the same time, the first front section anti-torsion arm 22 and the second front section anti-torsion arm 23 installed in sequence can enhance the integrated locking effect between adjacent front sections 2 of the vehicle body. When the frame is subjected to a lateral impact, the impact energy can be guided from one group of front sections 2 of the vehicle body to another group of front sections 2 of the vehicle body through the first front section anti-torsion arm 22 and the second front section anti-torsion arm 23, so that the impact energy is released in a balanced manner, the impact on the single-sided frame is reduced, and the torsional resistance of the front section 2 of the vehicle body is further improved.

[0046] It also includes a rear section torsion-resistant unit, which is arranged in the rear section 3 of the vehicle body to enhance the torsion-resistant effect of the rear section 3 of the vehicle body. In the event of a collision, it can reduce the energy absorption and collapse of the rear section 3 of the vehicle body to ensure the safety of the rear row of the vehicle;

[0047] The rear section torsion-resistant unit comprises a rear section fork arm 34, which is provided in two groups. The two groups of rear section fork arms 34 are respectively mounted on two groups of vehicle body rear sections 3, and the two groups of rear section fork arms 34 are fixed by a rear section locking arm 35. The rear section fork arm 34 is arranged in an arc shape, a rear section cavity 32 is arranged in the vehicle body rear section 3, a strip groove 33 is arranged through the area of ​​the vehicle body rear section 3 near the rear section cavity 32, a rear section support arm 5 is arranged in the area of ​​the second arc angle 39, a reinforcing rib groove 53 is arranged inside the rear section support arm 5, a first mounting ear 37 is installed on one side of the vehicle body rear section 3, a first hanging hole 38 is arranged on the first mounting ear 37, and a rear section fixing ear 31 is installed at one end of the vehicle body rear section 3.

[0048] A first rear section reinforcing rib plate 51 is installed on one side of the rear section support arm 5 close to the strip groove 33 , and a second rear section reinforcing rib plate 52 is installed on the other side of the rear section support arm 5 .

[0049] Each group of the rear section 3 of the vehicle body is provided with five groups of strip grooves 33 , and the five groups of strip grooves 33 are arranged at intervals.

[0050] In this embodiment, the rear section fork arms 34 on the rear section 3 of the vehicle body are installed in the strip groove 33 area. The rear section fork arms 34 installed on the rear section 3 of the vehicle body can be additionally provided according to the required modification of the vehicle body, so as to enhance the lateral torsional pressure resistance of the rear section 3 of the vehicle body. At the same time, when the rear section 3 of the vehicle body is hit by a rear-end collision, when the rear section 3 of the vehicle body absorbs energy and collapses, the spaced rear section fork arms 34 can lock and support the two groups of rear sections 3 of the vehicle body to slow down the energy absorption and collapse of the rear section 3 of the vehicle body, and at the same time ensure the longitudinal torsional resistance of the rear section 3 of the vehicle body. The through rib groove 15 is used to install the middle arc-shaped cross arm 16. The open setting of the through rib groove 15 can enhance the longitudinal torsional resistance of the middle section 1 of the vehicle body. At the same time, the middle arc-shaped cross arm 16 arranged in the through rib groove 15 area can enhance the lateral torsional pressure resistance of the two groups of middle sections 1 of the vehicle body when the middle section 1 of the vehicle body is hit from both sides. At the same time, the middle arc-shaped cross arm 16 guides the impact energy from one group of middle sections 1 of the vehicle body to the other group of middle sections 1 of the vehicle body, further reducing the impact on the single-side frame and improving the torsional resistance of the middle section 1 of the vehicle body.

[0051] Embodiment 2:

[0052] Based on the first embodiment, the second embodiment takes into account that if the torsion-resistant structure is not provided for the middle section 1 of the vehicle body, when the two sides of the middle section 1 of the vehicle body are hit, the insufficient torsion resistance of the middle section of the frame will directly lead to excessive deformation of the middle section of the frame assembly, resulting in deformation of the cockpit area, so that the door and the sunroof cannot be opened normally, and the rescue personnel cannot normally rescue the personnel in the cockpit. Therefore, the second embodiment is provided with a middle section torsion-resistant unit to improve the lateral torsion resistance of the middle section 1 of the vehicle body;

[0053] A middle section anti-torsion unit is arranged on the middle section 1 of the vehicle body.

[0054] The middle section torsion-resistant unit comprises a middle section arc-shaped cross arm 16, which is arranged in three groups at intervals. A through rib groove 15 is arranged on the surface of the middle section 1 of the vehicle body, and the through rib groove 15 passes through the middle section 1 of the vehicle body. Both ends of the middle section arc-shaped cross arm 16 are respectively inserted into the two groups of through rib grooves 15, and one end of the middle section arc-shaped cross arm 16 passes through the through rib groove 15. A locking plate 17 is installed on the outer side of the middle section 1 of the vehicle body, and locking sockets 18 are arranged at intervals on the locking plate 17. One end of the middle section arc-shaped cross arm 16 is fixedly inserted into the locking socket 18, and the locking sockets 18 are arranged in three groups at intervals.

[0055] In this embodiment, a through rib groove 15 is provided on the surface of the middle section 1 of the vehicle body for installing a middle section arc-shaped cross arm 16. The open setting of the through rib groove 15 can enhance the longitudinal torsional resistance of the middle section 1 of the vehicle body. At the same time, the middle section arc-shaped cross arm 16 provided in the area of ​​the through rib groove 15 can enhance the lateral torsional pressure resistance of the two groups of middle sections 1 of the vehicle body when the middle section 1 of the vehicle body is hit from both sides. At the same time, the middle section arc-shaped cross arm 16 guides the impact energy from one group of middle sections 1 of the vehicle body to the other group of middle sections 1 of the vehicle body, thereby further reducing the impact on the single-side frame and improving the torsional resistance of the middle section 1 of the vehicle body.

[0056] Working principle: During the use of the device, the setting of the reinforcing cross bar 4 at the end of the front section 2 of the vehicle body can enhance the lateral torsional pressure resistance of the front section 2 of the vehicle body. At the same time, the first front section torsion arm 22 and the second front section torsion arm 23 installed in sequence at the bottom area of ​​the front section 2 of the vehicle body can further enhance the lateral torsional pressure resistance of the bottom area of ​​the front section 2 of the vehicle body. At the same time, the first front section torsion arm 22 and the second front section torsion arm 23 installed in sequence can enhance the integrated locking effect between adjacent front sections 2 of the vehicle body, so that when the frame is subjected to a lateral impact, the impact energy can be guided from one group of front sections 2 of the vehicle body to another group of front sections 2 of the vehicle body through the first front section torsion arm 22 and the second front section torsion arm 23, so that the impact energy is released in a balanced manner, the impact on the single-side frame is reduced, and the torsion resistance of the front section 2 of the vehicle body is further improved;

[0057] A through rib groove 15 is provided on the surface of the vehicle body middle section 1 for installing a middle section arc-shaped cross arm 16. The open setting of the through rib groove 15 can enhance the longitudinal torsion resistance of the vehicle body middle section 1. At the same time, the middle section arc-shaped cross arm 16 provided in the through rib groove 15 area can enhance the lateral torsion resistance of the two groups of vehicle body middle sections 1 when the vehicle body middle section 1 is hit from both sides. At the same time, the middle section arc-shaped cross arm 16 guides the impact energy from one group of vehicle body middle sections 1 to another group of vehicle body middle sections 1, further reducing the impact on the single-side frame and improving the torsion resistance of the vehicle body middle section 1.

[0058] The rear section fork arm 34 on the rear section 3 of the vehicle body is installed in the strip groove 33 area. The rear section fork arm 34 installed on the rear section 3 of the vehicle body can be added according to the required modification of the vehicle body to enhance the lateral torsional pressure resistance of the rear section 3 of the vehicle body. At the same time, when the rear section 3 of the vehicle body is hit from behind, when the rear section 3 of the vehicle body absorbs energy and collapses, the spaced rear section fork arms 34 can lock and support the two groups of rear sections 3 of the vehicle body to slow down the energy absorption and collapse of the rear section 3 of the vehicle body, while ensuring the longitudinal torsional resistance of the rear section 3 of the vehicle body.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. High-strength torsion-resistant frame assembly, characterized by: The vehicle comprises a vehicle body middle section (1), a vehicle body front section (2) and a vehicle body rear section (3), wherein the vehicle body front section (2) and the vehicle body rear section (3) are respectively mounted at two ends of the vehicle body middle section (1), a first arc angle (26) is provided in a connection area between the vehicle body front section (2) and the vehicle body middle section (1), and a second arc angle (39) is provided in a connection area between the vehicle body rear section (3) and the vehicle body middle section (1); It also comprises a front section anti-torsion unit, which is arranged on the front section of the vehicle body (2) and is used to enhance the anti-torsion effect of the front section of the vehicle body (2) and enhance the lateral anti-torsion rigidity of the front section of the vehicle frame; The front section anti-torsion unit comprises a reinforcing cross bar (4), a front section cavity (25) is provided inside the front section (2) of the vehicle body, a cross bar mounting hole (27) is provided at one end of the front section (2) of the vehicle body, the reinforcing cross bar (4) is mounted on one end of the front section (2) of the vehicle body through the cross bar mounting hole (27), so that the adjacent front sections (2) of the vehicle body are fixed in an integrated manner, a bottom groove (21) is provided at the bottom area of ​​the front section (2) of the vehicle body, a first front section anti-torsion arm (22) and a second front section anti-torsion arm (23) are sequentially mounted in the area of ​​the bottom groove (21), and both ends of the first front section anti-torsion arm (22) and the second front section anti-torsion arm (23) are fixed to the two groups of the bottom grooves (21); The length of the second front section anti-torsion arm (23) is greater than the length of the first front section anti-torsion arm (22); The vehicle body middle section (1) is provided with a middle section anti-torsion unit; The middle section anti-torsion unit comprises a middle section arc-shaped cross arm (16), wherein the middle section arc-shaped cross arm (16) is arranged in three groups at intervals, a through rib groove (15) is arranged on the surface of the middle section (1) of the vehicle body, wherein the through rib groove (15) passes through the middle section (1) of the vehicle body, two ends of the middle section arc-shaped cross arm (16) are respectively inserted into two groups of through rib grooves (15), and one end of the middle section arc-shaped cross arm (16) passes through the through rib groove (15), a locking plate (17) is installed on the outer side of the middle section (1) of the vehicle body, and locking holes (18) are arranged at intervals on the locking plate (17), and one end of the middle section arc-shaped cross arm (16) is fixedly inserted into the locking holes (18), and the locking holes (18) are arranged in three groups at intervals; It also includes a rear section anti-torsion unit, which is arranged in the area of ​​the rear section (3) of the vehicle body and is used to enhance the anti-torsion effect of the rear section (3) of the vehicle body. In the event of a collision, it can reduce the energy absorption and collapse of the rear section (3) of the vehicle body, thereby ensuring the safety of the rear row of the vehicle.

2. The high-strength anti-torsion frame assembly according to claim 1 is characterized in that: A front section fixing ear (28) is installed at one end of the front section (2) of the vehicle body, and the front section fixing ear (28) is arranged in two groups.

3. The high-strength anti-torsion frame assembly according to claim 1 is characterized in that: The rear section anti-torsion unit comprises a rear section fork arm (34), the rear section fork arm (34) is arranged in two groups, the two groups of the rear section fork arms (34) are respectively mounted on the two groups of the vehicle body rear sections (3), the two groups of the rear section fork arms (34) are fixed by a rear section locking arm (35), the rear section fork arm (34) is arranged in an arc shape, a rear section cavity (32) is arranged in the vehicle body rear section (3), a strip groove (33) is arranged through the vehicle body rear section (3) near the rear section cavity (32), a rear section support arm (5) is arranged in the second arc angle (39) area, a reinforcing rib groove (53) is arranged inside the rear section support arm (5), a first mounting ear (37) is mounted on one side of the vehicle body rear section (3), a first hanging hole (38) is arranged on the first mounting ear (37), and a rear section fixing ear (31) is mounted on one end of the vehicle body rear section (3).

4. The high-strength anti-torsion frame assembly according to claim 3 is characterized in that: A first rear section reinforcing rib plate (51) is installed on one side of the rear section support arm (5) close to the strip-shaped groove (33), and a second rear section reinforcing rib plate (52) is installed on the other side of the rear section support arm (5).

5. The high-strength anti-torsion frame assembly according to claim 4 is characterized in that: Each group of the vehicle body rear section (3) is provided with five groups of the strip-shaped grooves (33), and the five groups of the strip-shaped grooves (33) are arranged at intervals.

6. The high-strength anti-torsion frame assembly according to claim 1 is characterized in that: A middle cavity (11) is arranged inside the middle section (1) of the vehicle body, and reinforcement holes (12) are arranged on the surface of the middle section (1) of the vehicle body. Eight groups of reinforcement holes (12) are arranged at intervals on each group of the middle section (1) of the vehicle body, and the eight groups of reinforcement holes (12) are symmetrically arranged along the central area of ​​the middle section (1) of the vehicle body. A second mounting ear (13) is installed on the outer side of the middle section (1) of the vehicle body, and a second hanging hole (14) is installed on the second mounting ear (13).

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