A torsionally stiff vehicle frame assembly
By using high-strength alloy steel I-beam longitudinal beams and box-shaped crossbeam connectors, combined with rubber pads and curved plates, the problem of increased weight in existing frames when improving torsional performance has been solved, achieving both lightweighting and improved stability.
Patent Information
- Application Number
- CN202522051242.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-09-24
Smart Images

Figure CN224546088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive frame technology, specifically to an anti-torsion frame assembly. Background Technology
[0002] As a critical load-bearing component of a vehicle, the chassis's performance directly impacts the vehicle's overall performance and safety. During vehicle operation, the chassis is subjected to various complex forces, among which torsional force is a common and significant one. When a vehicle traverses uneven surfaces, turns, or engages in other complex driving conditions, the chassis experiences varying degrees of torsional stress.
[0003] Currently, existing vehicle frames mostly improve torsional resistance by increasing material thickness or adding reinforcing ribs;
[0004] However, this approach not only significantly increases the overall weight of the chassis, leading to increased vehicle energy consumption, but also raises the manufacturing cost of the chassis, which is detrimental to the performance optimization of the vehicle in terms of cost control and energy conservation. Utility Model Content
[0005] The purpose of this invention is to provide an anti-torsion frame assembly to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a torsion-resistant frame assembly, comprising: two longitudinal beams, both of which are made of high-strength alloy steel and have an I-shaped cross-section; two crossbeam connectors, which are installed in the middle between the two longitudinal beams to improve the overall torsion resistance of the frame; the crossbeam connectors include two crossbeam bodies installed between the two longitudinal beams, with fixing plates fixedly installed at both ends of the crossbeam bodies, and rubber pads for cushioning installed between the crossbeam bodies and the fixing plates.
[0007] Preferably, a mounting bolt is installed through the surface of the fixing plate, and one end of the mounting bolt passes through the rubber gasket and the longitudinal beam in sequence and extends to one side of the longitudinal beam. A nut is threaded onto the surface of the mounting bolt located on one side of the longitudinal beam.
[0008] The main body of the crossbeam has a box-shaped structure, and several reinforcing partitions are fixedly installed inside the main body of the crossbeam, separating several chambers between the main body of the crossbeam and the several reinforcing partitions.
[0009] Preferably, the top and bottom of the main body of the crossbeam are provided with mounting grooves, and arc-shaped plates are installed inside the two mounting grooves. Fixing bolts are installed through the inside of the arc-shaped plates, and the arc-shaped plates are fixedly connected to the reinforcing partition by fixing bolts.
[0010] A spring washer is installed at the point where the fixing bolt passes through the reinforcing partition to prevent the fixing bolt from loosening.
[0011] Preferably, screws are installed through the top and bottom of the fixing plate, and one end of the screw passes through the rubber gasket and the longitudinal beam in sequence and is threadedly connected to the longitudinal beam to further improve the connection stability of the crossbeam body.
[0012] Preferably, the fixing plate and the rubber gasket are both geometrically shaped, and the fixing plate and the rubber gasket are in contact with the inner sidewall of the longitudinal beam.
[0013] Preferably, a secondary beam is welded between the two longitudinal beams and on both sides of the two transverse beam connectors, and a triangular reinforcing rib is welded at the connection between the secondary beam and the longitudinal beam.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The longitudinal beams are made of high-strength alloy steel and have an I-shaped cross section, which can greatly improve the bending and torsional resistance of the longitudinal beams. In conjunction with the main body of the crossbeams, the main body of the crossbeams adopts a box-shaped structure and is equipped with reinforcing partitions. This can reduce the overall weight of the main body of the crossbeams and the longitudinal beams while ensuring the overall torsional strength of the frame. This avoids the situation where excessive material thickness is added to improve torsional performance, which would lead to an increase in the overall weight of the frame and an increase in vehicle energy consumption.
[0016] 2. By utilizing the arc-shaped plate, the arc-shaped plate set in the middle of the main body of the crossbeam can increase the bending and torsional resistance of the middle crossbeam, making the middle crossbeam more stable when bearing load, so as to avoid excessive deformation or even breakage due to complex external forces during vehicle operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the crossbeam connector structure of this utility model;
[0019] Figure 3 This is a partial structural schematic diagram of the beam connector of this utility model;
[0020] Figure 4 This is a cross-sectional structural diagram of the main body of the crossbeam of this utility model;
[0021] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.
[0022] In the diagram: 1. Longitudinal beam; 2. Crossbeam connector; 21. Crossbeam body; 22. Fixing plate; 23. Rubber gasket; 24. Mounting bolt; 25. Nut; 26. Reinforcing partition; 27. Chamber; 28. Mounting groove; 29. Arc plate; 201. Fixing bolt; 202. Spring washer; 203. Screw; 3. Sub-beam; 4. Triangular reinforcing rib. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-5 This utility model provides a technical solution: an anti-torsion frame assembly, comprising: two longitudinal beams 1, both of which are made of high-strength alloy steel and have an I-shaped cross section; two crossbeam connectors 2, which are installed in the middle between the two longitudinal beams 1 to improve the overall torsional resistance of the frame; the crossbeam connectors 2 include two crossbeam bodies 21 installed between the two longitudinal beams 1, both ends of which are fixedly installed with fixing plates 22, and a rubber pad 23 for buffering is installed between the crossbeam body 21 and the fixing plate 22;
[0025] In this embodiment, the rubber pad 23 has the function of buffering and shock absorption, which can reduce the impact of vibration generated during vehicle operation on the frame, and also helps to disperse torsional force.
[0026] Reference Figure 3 as well as Figure 4 As shown, mounting bolts 24 are installed through the surface of the fixing plate 22, and one end of the mounting bolts 24 passes through the rubber gasket 23 and the longitudinal beam 1 in sequence and extends to one side of the longitudinal beam 1. The mounting bolts 24 on one side of the longitudinal beam 1 are threaded with nuts 25. The crossbeam body 21 has a box-shaped structure, and several reinforcing partitions 26 are fixedly installed inside the crossbeam body 21. Several chambers 27 are separated between the crossbeam body 21 and the several reinforcing partitions 26.
[0027] In this embodiment, the longitudinal beam 1 is made of high-strength alloy steel and has an I-shaped cross section, which can greatly improve the bending and torsional resistance of the longitudinal beam 1. In conjunction with the crossbeam body 21, the crossbeam body 21 adopts a box-shaped structure and is equipped with reinforcing partitions 26. This can reduce the overall weight of the crossbeam body 21 and the longitudinal beam 1 while ensuring the overall torsional strength of the frame. This avoids the situation where excessive material thickness is added to improve torsional performance, which would lead to an increase in the overall weight of the frame and an increase in vehicle energy consumption.
[0028] Reference Figure 3 , Figure 4 as well as Figure 5 As shown, the top and bottom of the main body 21 of the crossbeam are provided with mounting grooves 28, and arc-shaped plates 29 are installed inside the two mounting grooves 28. Fixing bolts 201 are installed through the arc-shaped plates 29, and the arc-shaped plates 29 and the reinforcing partition 26 are fixedly connected by fixing bolts 201. Spring washers 202 are installed at the penetration point between the fixing bolts 201 and the reinforcing partition 26 to prevent the fixing bolts 201 from loosening.
[0029] In this embodiment, the arc-shaped plate 29 provided in the middle of the crossbeam body 21 can increase the bending and torsional resistance of the middle crossbeam, making the middle crossbeam more stable when bearing load, so as to avoid excessive deformation or even breakage due to complex external forces during vehicle operation.
[0030] Reference Figure 2 as well as Figure 3 As shown, screws 203 are installed through the top and bottom of the fixing plate 22, and one end of the screw 203 passes through the rubber gasket 23 and the longitudinal beam 1 in sequence and is threaded to the longitudinal beam 1 to further improve the connection stability of the crossbeam body 21.
[0031] In this embodiment, when the crossbeam body 21 is connected to the longitudinal beam 1, the stability of the crossbeam body 21 can be further improved by connecting it with the crossbeam body 21 through screws 203. Furthermore, by setting a number of mounting bolts 24 and screws 203 through the fixing plate 22 and the rubber gasket 23, it is easy to disassemble the crossbeam body 21, so as to avoid timely replacement of the rubber gasket 23 when it is damaged.
[0032] Reference Figure 2 as well as Figure 3 As shown, the fixed plate 22 and the rubber pad 23 are both geometric in shape, and the fixed plate 22 and the rubber pad 23 are attached to the inner side wall of the longitudinal beam 1.
[0033] In this embodiment, by utilizing the shape design between the fixing plate 22 and the rubber gasket 23, the tightness of the connection between the crossbeam body 21 and the longitudinal beam 1 can be further improved, so as to avoid loosening and affecting the connection stability in actual application.
[0034] Reference Figure 1 As shown, a secondary beam 3 is welded between the two longitudinal beams 1 and on both sides of the two crossbeam connectors 2, and a triangular reinforcing rib 4 is welded at the connection between the secondary beam 3 and the longitudinal beam 1.
[0035] In this embodiment, the stability of the connection between the crossbeam body 21 and the longitudinal beam 1 can be further improved, and loosening between the longitudinal beam 1 and the crossbeam body 21 can be avoided during actual application.
[0036] Working principle: The longitudinal beam 1 is made of high-strength alloy steel and has an I-shaped cross section, which can greatly improve the bending and torsional resistance of the longitudinal beam 1. In conjunction with the crossbeam body 21, the crossbeam body 21 adopts a box-shaped structure and is equipped with a reinforcing partition 26. While ensuring the overall torsional strength of the frame, it can reduce the overall weight of the crossbeam body 21 and the longitudinal beam 1, so as to avoid excessively increasing the material thickness to improve the torsional performance. In addition, the arc plate 29 set in the middle of the crossbeam body 21 can increase the bending and torsional resistance of the middle crossbeam, making the middle crossbeam more stable when bearing load, so as to avoid excessive deformation or even breakage due to complex external forces during vehicle operation.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A torsion-resistant frame assembly, characterized in that, include: Two longitudinal beams (1), and both longitudinal beams (1) are made of high-strength alloy steel with an I-shaped cross section; Two crossbeam connectors (2) are installed in the middle between the two longitudinal beams (1) to improve the overall torsional resistance of the frame; The crossbeam connector (2) includes two crossbeam bodies (21) installed between the two longitudinal beams (1). Both ends of the crossbeam bodies (21) are fixedly installed with fixing plates (22). A rubber pad (23) for buffering is installed between the crossbeam bodies (21) and the fixing plates (22).
2. The anti-torsion frame assembly according to claim 1, characterized in that: The surface of the fixing plate (22) is provided with mounting bolts (24), and one end of the mounting bolts (24) passes through the rubber gasket (23) and the longitudinal beam (1) in sequence and extends to one side of the longitudinal beam (1). The surface of the mounting bolts (24) located on one side of the longitudinal beam (1) is threaded with nuts (25). The main body of the crossbeam (21) has a box-shaped structure. Several reinforcing partitions (26) are fixedly installed inside the main body of the crossbeam (21), and several chambers (27) are separated between the main body of the crossbeam (21) and the several reinforcing partitions (26).
3. The anti-torsion frame assembly according to claim 2, characterized in that: The top and bottom of the main body of the crossbeam (21) are provided with mounting grooves (28), and arc plates (29) are installed inside the two mounting grooves (28). Fixing bolts (201) are installed through the arc plates (29), and the arc plates (29) and the reinforcing partition (26) are fixedly connected by fixing bolts (201). A spring washer (202) is installed at the penetration point between the fixing bolt (201) and the reinforcing partition (26) to prevent the fixing bolt (201) from loosening.
4. The anti-torsion frame assembly according to claim 1, characterized in that: Screws (203) are installed through the top and bottom of the fixing plate (22), and one end of the screw (203) passes through the rubber gasket (23) and the longitudinal beam (1) in sequence and is threaded to the longitudinal beam (1) to further improve the connection stability of the crossbeam body (21).
5. The anti-torsion frame assembly according to claim 2, characterized in that: The fixed plate (22) and the rubber pad (23) are both in the shape of a geometric shape, and the fixed plate (22) and the rubber pad (23) are in contact with the inner side wall of the longitudinal beam (1).
6. The anti-torsion frame assembly according to claim 1, characterized in that: A secondary beam (3) is welded between the two longitudinal beams (1) and on both sides of the two crossbeam connectors (2), and a triangular reinforcing rib (4) is welded at the connection between the secondary beam (3) and the longitudinal beam (1).