High-strength cab frame
By using high-strength hot-formed steel reinforcement plates and energy-absorbing structures in the cab frame, the deformation problem of the cab frame during collision is solved, safety is improved, costs are controlled, and a more uniform energy absorption effect is achieved.
Patent Information
- Application Number
- CN202422911205.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The existing cab frame is prone to severe deformation during a vehicle collision, causing the cab space to collapse and endangering the safety of passengers. In addition, ordinary carbon steel is low in cost but lacks strength.
The first and second reinforcement plates are made of high-strength hot-formed steel, and grooves are set on the A-pillar, B-pillar and firewall. Combined with energy-absorbing rods and energy-absorbing plates, the deformation resistance of the frame structure is enhanced. At the same time, ordinary carbon steel is partially used to control costs.
The deformation resistance of the cab frame is improved, the safety of the occupants is enhanced, and the increase in production costs is controlled. The energy-absorbing structure evenly absorbs energy during a collision and reduces the deformation of the cab frame.
Smart Images
Figure CN223355725U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cab frames, in particular to a high-strength cab frame. Background Art
[0002] The frame is the entire body frame and is an important part of the car. It supports the entire car and ensures the safety of the driver and passengers. The cab frame generally refers to the part of the body frame surrounded by the A-pillar, B-pillar and firewall, which is used to set the main and co-driver seats.
[0003] In the prior art, the entire vehicle body frame including the cab frame is often made of ordinary carbon steel, which has good plasticity and weldability and is low in cost.
[0004] However, ordinary carbon steel has low strength. When a vehicle encounters a collision, the body frame made of ordinary carbon steel is prone to deformation. Especially when the vehicle encounters a collision, the cab frame will cause extremely serious deformation, causing the cab space to severely collapse, which will squeeze the people in the main and co-frame seats and endanger the personal safety of the people in the cab. Utility Model Content
[0005] The purpose of the present invention is to provide a high-strength cab frame to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-strength cab frame, comprising: A-pillars, B-pillars and firewalls, two groups of A-pillars and B-pillars are provided, the firewalls are fixed between the two groups of A-pillars, and the engine compartment frame is fixed to the same end surface of the two groups of A-pillars, a first groove is provided on the surface of the A-pillars and the B-pillars, a first reinforcement plate is fixed in the first groove, a second groove is provided on the top surface of the firewall, a second reinforcement plate is fixed in the second groove, and the two ends of the second reinforcement plate are respectively fixed to the two groups of first reinforcement plates.
[0007] Preferably, the first groove is provided along a circle formed by the A-pillar and the B-pillar, and the first reinforcing plate is in a U-shaped structure.
[0008] Preferably, a third groove is provided on the surface of the engine compartment frame, the third groove is connected to the first groove, an energy absorbing rod is provided in the third groove, and one end of the energy absorbing rod is fixed on the surface of the first reinforcing plate.
[0009] Preferably, several groups of energy absorbing panels are provided between the two groups of engine compartment frames, and the energy absorbing panels are in a fan-shaped structure.
[0010] Preferably, a plurality of groups of plug holes are provided on the surface of the engine compartment frame, and the plurality of groups of plug holes are distributed in a linear array, one end of a plug rod is movably plugged into the plug hole, and the other end of the plug rod is movably plugged into the plug slot, and the plug slot is provided on the surface of the energy absorption plate.
[0011] Preferably, one end of the plug rod inserted into the plug hole is fixed on the surface of the energy absorbing rod, the plug rod is a circular rod body structure, and the plug groove is a circular groove body structure.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The high-strength cab frame proposed by the present invention has a first reinforcing plate in the first groove and a second reinforcing plate in the second groove, both of which are made of high-strength hot-formed steel. This high-strength hot-formed steel has great anti-deformation ability, and the first reinforcing plate is in a Chinese-shaped structure, and the second reinforcing plate is in a fan-shaped structure, so that the first reinforcing plate and the second reinforcing plate have greater anti-deformation ability. When the vehicle encounters a frontal collision, the impulse borne by the engine compartment is transmitted to the A-pillar and the firewall, and the impulse borne by the firewall is transmitted to the second reinforcing plate, and the impulse borne by the A-pillar is transmitted to the two sets of first reinforcing plates, and the two ends of the second reinforcing plate are It is fixed with two groups of first reinforcing plates, so that no matter where the collision occurs, the two groups of first reinforcing plates and second reinforcing plates can bear the impact together. The second reinforcing plates support the firewall, and the two groups of first reinforcing plates support the two groups of A-pillars and B-pillars, thereby strengthening the strength of the cockpit frame. In addition, high-strength hot-formed steel is expensive. The first reinforcing plates and the second reinforcing plates are set by slotting on the A-pillars, B-pillars and firewalls. The overall structure of the body frame still uses ordinary carbon steel, which enhances the strength of the cab frame while reducing the increase in the production cost of the cab frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0016] Figure 3 for Figure 2 A magnified schematic diagram of the structure in the middle.
[0017] In the figure: A-pillar 1, B-pillar 2, firewall 3, first groove 4, first reinforcement plate 5, second groove 6, second reinforcement plate 7, engine compartment frame 8, third groove 9, energy absorbing rod 10, plug hole 11, plug rod 12, energy absorbing plate 13, plug slot 14. DETAILED DESCRIPTION
[0018] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] Example 1: Please refer to Figures 1 to 3 The utility model provides a technical solution: a high-strength cab frame, comprising: an A-pillar 1, a B-pillar 2 and a firewall 3, two groups of A-pillars 1 and B-pillars 2 are provided, the firewall 3 is fixed between the two groups of A-pillars 1, and an engine compartment frame 8 is fixed to the same end surface of the two groups of A-pillars 1, a first groove 4 is opened on the surface of the A-pillar 1 and the B-pillar 2, a first reinforcing plate 5 is fixed in the first groove 4, a second groove 6 is opened on the top surface of the firewall 3, a second reinforcing plate 7 is fixed in the second groove 6, both ends of the second reinforcing plate 7 are respectively fixed to the two groups of first reinforcing plates 5, the first groove 4 is opened along the shape surrounded by the A-pillar 1 and the B-pillar 2, and the first reinforcing plate 5 has a "U"-shaped structure.
[0020] In actual use, the first reinforcing plate 5 in the first groove 4 and the second reinforcing plate 7 in the second groove 6 are both made of high-strength hot-formed steel. This high-strength hot-formed steel has great anti-deformation ability, and the first reinforcing plate 5 is in a Chinese-shaped structure, and the second reinforcing plate 7 is in a fan-shaped structure, so that the first reinforcing plate 5 and the second reinforcing plate 7 have greater anti-deformation ability. When the vehicle encounters a head-on collision, the impulse borne by the engine compartment is transmitted to the A-pillar 1 and the firewall 3, and the impulse borne by the firewall 3 is transmitted to the second reinforcing plate 7. The impulse borne by the A-pillar 1 is transmitted to the two groups of first reinforcing plates 5, and the two ends of the second reinforcing plate 7 are connected to the two groups of first The reinforcing plates 5 are fixed, so that no matter where the collision occurs, the two groups of first reinforcing plates 5 and second reinforcing plates 7 can bear the impact together. The second reinforcing plates 7 support the firewall 3, and the two groups of first reinforcing plates 5 support the two groups of A-pillars 1 and B-pillars 2, thereby strengthening the strength of the cockpit frame. In addition, high-strength hot-formed steel is expensive. The first reinforcing plates 5 and the second reinforcing plates 7 are set by slotting the A-pillars 1, B-pillars 2 and firewall 3. The overall structure of the vehicle body frame still uses ordinary carbon steel, which enhances the strength of the cab frame while reducing the increase in the production cost of the cab frame.
[0021] Example 2: On the basis of Example 1, in order to reduce the stress strength of the cab frame by strengthening the energy absorption capacity of the engine compartment frame 8, and thereby strengthen the strength of the cab frame in disguise, a third groove 9 is opened on the surface of the engine compartment frame 8, and the third groove 9 is connected with the first groove 4. An energy absorption rod 10 is provided in the third groove 9, and one end of the energy absorption rod 10 is fixed on the surface of the first reinforcing plate 5. Several groups of energy absorption plates 13 are provided between the two groups of engine compartment frames 8, and the energy absorption plates 13 are fan-shaped structures.
[0022] When a vehicle collides head-on, the engine compartment is always the first to receive the impact, causing the engine compartment frame 8 to collapse, and then the impulse is transferred from the engine compartment frame 8 to the cab frame. Therefore, when the same magnitude of impulse acts on the vehicle body frame, the greater the impulse that the engine compartment frame 8 can absorb, the smaller the impulse transferred to the cab frame, and the smaller the deformation caused to the cab frame. Therefore, the strength of the cab frame can be increased in disguise by enhancing the energy absorption capacity of the engine compartment frame 8. In order to achieve this goal, a third groove 9 is opened on the surface of the engine compartment frame 8, and an energy absorption rod 10 is set in the third groove 9. Between the two sets of engine compartment frames 8, an energy absorption rod 10 is provided. Several groups of energy-absorbing plates 13 are provided. The energy-absorbing rods 10 and the energy-absorbing plates 13 are both made of aluminum alloy and can deform during a collision to quickly absorb energy and convert it into heat energy. When a collision occurs, the impulse acts on the engine compartment frame 8 and the energy-absorbing plates 13. The impulse received by the engine compartment frame 8 acts on the energy-absorbing rods 10. The energy-absorbing rods 10 are arranged longitudinally, so the energy-absorbing rods 10 can continue to absorb energy as the engine compartment frame 8 collapses. Several groups of energy-absorbing plates 13 are arranged linearly and can also continue to absorb energy as the collided object invades. Therefore, when the engine compartment frame 8 collapses, energy can be absorbed to a greater extent, thereby enhancing the strength of the cab frame in disguise.
[0023] Example 3: On the basis of Example 2, in order to realize the connection between the energy absorbing plate 13 and the energy absorbing rod 10, a plurality of groups of plug-in holes 11 are opened on the surface of the engine compartment frame 8, and the plurality of groups of plug-in holes 11 are distributed in a linear array. One end of the plug-in rod 12 is movably inserted in the plug-in hole 11, and the other end of the plug-in rod 12 is movably inserted in the plug-in groove 14. The plug-in groove 14 is opened on the surface of the energy absorbing plate 13, and one end of the plug-in rod 12 inserted in the plug-in hole 11 is fixed on the surface of the energy absorbing rod 10. The plug-in rod 12 has a circular rod body structure, and the plug-in groove 14 has a circular groove body structure.
[0024] A plug hole 11 is provided on the surface of the engine compartment frame 8, and a plug groove 14 is provided at both ends of the energy absorbing plate 13. The plug rod 12 fixed on the surface of the energy absorbing rod 10 passes through the plug hole 11 and is inserted into the plug groove 14, thereby realizing the connection between the energy absorbing plate 13 and the energy absorbing rod 10. In this way, when an offset collision occurs, the two sets of energy absorbing rods 10 can absorb the impulse at the same time as the energy absorbing plate 13, making the collapse of the engine compartment frame 8 more uniform, thereby reducing the degree of collapse of the side directly subjected to the impact.
[0025] In actual use, the first reinforcing plate 5 in the first groove 4 and the second reinforcing plate 7 in the second groove 6 are both made of high-strength hot-formed steel. This high-strength hot-formed steel has great anti-deformation ability, and the first reinforcing plate 5 is in a Chinese-shaped structure, and the second reinforcing plate 7 is in a fan-shaped structure, so that the first reinforcing plate 5 and the second reinforcing plate 7 have greater anti-deformation ability. When the vehicle encounters a frontal collision, after the impulse borne by the engine compartment is transmitted to the A-pillar 1 and the firewall 3, the impulse borne by the firewall 3 is transmitted to the second reinforcing plate 7, and the impulse borne by the A-pillar 1 is transmitted to the two groups of first reinforcing plates 5. The two ends of the second reinforcing plate 7 are connected to the two groups of first reinforcing plates. 5 is fixed, so that no matter where the collision occurs, the two sets of first reinforcing plates 5 and second reinforcing plates 7 can bear the impact together. The second reinforcing plates 7 support the firewall 3, and the two sets of first reinforcing plates 5 support the two sets of A-pillars 1 and B-pillars 2, thereby strengthening the strength of the cockpit frame. In addition, high-strength hot-formed steel is expensive. The first reinforcing plates 5 and the second reinforcing plates 7 are provided by slotting the A-pillars 1, B-pillars 2 and firewall 3, while the overall structure of the vehicle body frame still uses ordinary carbon steel. This makes it possible to enhance the strength of the cab frame while reducing the increase in the production cost of the cab frame. When the vehicle is involved in a frontal collision, During a collision, the engine compartment is always impacted first, causing the engine compartment frame 8 to collapse, and then the impulse is transferred from the engine compartment frame 8 to the cab frame. Therefore, when the same magnitude of impulse acts on the vehicle body frame, the greater the impulse that the engine compartment frame 8 can absorb, the smaller the impulse transferred to the cab frame, and the smaller the deformation caused to the cab frame. Therefore, the strength of the cab frame can be increased in disguise by enhancing the energy absorption capacity of the engine compartment frame 8. In order to achieve this goal, a third groove 9 is provided on the surface of the engine compartment frame 8, an energy absorption rod 10 is provided in the third groove 9, and several energy absorption rods 10 are provided between the two sets of engine compartment frames 8. The energy-absorbing plates 13, the energy-absorbing rods 10 and the energy-absorbing plates 13 are all made of aluminum alloy and can deform in a collision to quickly absorb energy and convert it into heat energy. When a collision occurs, the impulse acts on the engine compartment frame 8 and the energy-absorbing plates 13, and the impulse received by the engine compartment frame 8 acts on the energy-absorbing rods 10. The energy-absorbing rods 10 are arranged longitudinally, so that the energy-absorbing rods 10 can continue to absorb energy as the engine compartment frame 8 collapses. The linear arrangement of the energy-absorbing plates 13 can also continue to absorb energy as the collided object invades. As a result, when the engine compartment frame 8 collapses, it can absorb energy to a greater extent, thereby indirectly enhancing the strength of the cab frame.The engine compartment frame 8 has a connection hole 11 formed on its surface, and a connection slot 14 formed at each end of the energy-absorbing plate 13. The connection rod 12, fixed to the surface of the energy-absorbing rod 10, passes through the connection hole 11 and then into the connection slot 14, thereby connecting the energy-absorbing plate 13 to the energy-absorbing rod 10. In this way, when an offset collision occurs, both sets of energy-absorbing rods 10 can absorb the impact simultaneously with the energy-absorbing plate 13, making the collapse of the engine compartment frame 8 more uniform and reducing the degree of collapse on the side directly subjected to the impact.
[0026] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-strength cab frame, comprising: A-pillars (1), B-pillars (2) and firewalls (3), two groups of A-pillars (1) and B-pillars (2) are provided, the firewalls (3) are fixed between the two groups of A-pillars (1), and an engine compartment frame (8) is fixed on the same end surface of the two groups of A-pillars (1), characterized in that: a first groove (4) is opened on the surface of the A-pillars (1) and the B-pillars (2), a first reinforcing plate (5) is fixed in the first groove (4), a second groove (6) is opened on the top surface of the firewall (3), a second reinforcing plate (7) is fixed in the second groove (6), and both ends of the second reinforcing plate (7) are respectively fixed to the two groups of first reinforcing plates (5).
2. The high-strength cab frame according to claim 1, characterized in that: The first groove (4) is provided along a circle along the shape enclosed by the A-pillar (1) and the B-pillar (2), and the first reinforcing plate (5) is in a "U"-shaped structure.
3. The high-strength cab frame according to claim 1, characterized in that: A third groove (9) is provided on the surface of the engine compartment frame (8), the third groove (9) is connected to the first groove (4), an energy absorbing rod (10) is provided in the third groove (9), and one end of the energy absorbing rod (10) is fixed on the surface of the first reinforcing plate (5).
4. The high-strength cab frame according to claim 3, characterized in that: A plurality of energy absorbing panels (13) are arranged between the two groups of engine compartment frames (8), and the energy absorbing panels (13) are in a fan-shaped structure.
5. The high-strength cab frame according to claim 4, characterized in that: A plurality of groups of plug holes (11) are provided on the surface of the engine compartment frame (8), and the plurality of groups of plug holes (11) are distributed in a linear array. One end of a plug rod (12) is movably plugged into the plug hole (11), and the other end of the plug rod (12) is movably plugged into a plug slot (14), and the plug slot (14) is provided on the surface of the energy absorption plate (13).
6. The high-strength cab frame according to claim 5, characterized in that: One end of the plug rod (12) plugged into the plug hole (11) is fixed on the surface of the energy absorbing rod (10); the plug rod (12) is a circular rod structure, and the plug slot (14) is a circular slot structure.