High-strength special vehicle cab

Abstract

The utility model provides high strength special vehicle cab, including base and main beam, two pairs of main beam are provided, two pairs of main beam set up with base top two sides symmetry distribution, main beam includes front vertical roof beam and rear vertical roof beam, and the front vertical roof beam is connected through roof beam between the rear vertical roof beam, and the front vertical roof beam and rear vertical roof beam bottom are all with base fixed connection, and the roof beam both ends are respectively with the top welding fixed of front vertical roof beam and rear vertical roof beam, be provided with slide rail on the front vertical roof beam, rear vertical roof beam and roof beam, buffer device, buffer device is provided with a plurality of, and buffer device evenly distributes on the slide rail, and a plurality of buffer devices are connected with vice beam, and the outside of vice beam is equipped with outer enclose, and the outer enclose is wrapped vice beam with main beam, and the first contact outer enclose is contacted under the impact, and the impact force is conducted to vice beam by outer enclose, and vice beam absorbs impact force through buffer device, avoids the stress concentration in main beam structure under the impact direct, and the overall impact resistance is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of driver's cabs, and more particularly to driver's cabs for high-strength special vehicles. Background Technology

[0002] In the modern transportation sector, special vehicles, due to their unique operational nature, need to ensure safe and efficient operation in complex environments. The cabs of these special vehicles must not only provide drivers with comprehensive visibility and convenient control, but also withstand extreme working conditions such as vibration, impact, and harsh environments. Therefore, cab strength has become a key indicator for measuring their performance.

[0003] There is currently a mining truck cab with Chinese patent application number CN201921924736.2, which includes a cab and a platform. The cab includes a frame, a front panel, a left side panel, a right side panel, a floor panel, a rear panel, a roof panel, a door, hinges, and flexible steps. The front panel, left side panel, right side panel, floor panel, rear panel, and roof panel are welded to the frame. The door is connected to the frame via hinges, and the flexible steps are installed and connected to the frame.

[0004] However, the above-mentioned patent has certain defects in use. Although the cab frame is sturdy, when the frame on both sides is hit, the impact point will directly transmit stress to the frame body, causing local stress concentration, which can easily cause the frame to deform. In severe cases, it can cause the door to be unable to open normally, affecting emergency escape.

[0005] To address these issues, a high-strength special vehicle cab is proposed. Utility Model Content

[0006] In order to overcome the shortcomings of existing technologies where stress is directly transferred to the frame and causes deformation when the frame is impacted, this utility model provides a high-strength special vehicle cab.

[0007] This utility model is achieved using the following technical solution: The high-strength special vehicle cab includes a base and main beams. There are two pairs of main beams, which are symmetrically distributed on both sides of the top of the base. The main beams include a front vertical beam and a rear vertical beam. The front vertical beam and the rear vertical beam are connected by a top beam. The bottom of the front vertical beam and the rear vertical beam are fixedly connected to the base. The two ends of the top beam are welded and fixed to the top of the front vertical beam and the rear vertical beam, respectively. The front vertical beam, the rear vertical beam and the top beam are equipped with slide rails. The buffer device consists of multiple devices evenly distributed on the slide rail. Each buffer device is connected to a secondary beam, and an outer surround is provided on the outside of the secondary beam. The outer surround encloses the secondary beam and the main beam. When impacted, the secondary beam first contacts the outer surround, which then transmits the impact force to the secondary beam. The secondary beam absorbs the impact force through the buffer device.

[0008] As a preferred embodiment of this utility model, the buffer device includes a slider and an energy-absorbing box. The slider is slidably connected to the slide rail, and the slider and the energy-absorbing box are fixedly connected. The energy-absorbing box clamps the sub-beam on one side.

[0009] As a preferred embodiment of this utility model, the energy-absorbing box is symmetrically provided with limit clamps on both sides, the limit clamps are in contact with the main beam, and the limit clamps are provided with locking holes, in which shearing bolts are embedded.

[0010] As a preferred embodiment of this utility model, the energy-absorbing box is provided with an elastic element inside, specifically an absorbent cotton, which is distributed in a honeycomb pattern.

[0011] As a preferred embodiment of this utility model, a plurality of soft sleeves are evenly provided between the sub-beam and the outer enclosure, and the soft sleeves contain a plurality of springs.

[0012] As a preferred embodiment of this utility model, multiple connecting beams are provided transversely between the two pairs of main beams, and reinforcing beams are provided on the connecting beams, with the reinforcing beams located in the middle of the connecting beams.

[0013] As a preferred embodiment of this utility model, a middle beam is provided between the front upright beam and the rear upright beam, and a connecting piece is provided on the middle beam, which is connected to the side enclosure. A door frame is provided on one side of the central beam, and the door frame is hinged to the front beam. A side panel is provided between the central beam and the rear beam.

[0014] Compared with existing technologies, the advantages of this utility model are: 1. Through the coordinated action of the slide rails and buffer devices on the main beam, the secondary beam effectively disperses impact energy upon impact. The honeycomb absorbent cotton inside the energy-absorbing box collapses layer by layer during compression, further extending the stress transmission path and preventing stress from being directly concentrated on the main beam structure upon impact, thus significantly improving the overall impact resistance.

[0015] 2. Connect the car door and side panel directly to the front and rear uprights on the main beam. In the event of an impact, the door will first contact the outer surround and sub-beam, thus avoiding the problem of the door not being able to open due to the impact.

[0016] 3. When the impact force is too great, the shear bolts break first under the preset load, causing the energy-absorbing box to slide along the slide rail through the slider, thereby driving the sub-beam to move backward as a whole, achieving secondary buffering. Attached Figure Description

[0017] Figure 1 This is the overall assembly structure diagram of this utility model; Figure 2 This is an exploded side view of the present invention. Figure 3This is a structural diagram of the main beam and secondary beam of this utility model; Figure 4 This is a structural diagram of the soft sleeve on the secondary beam of this utility model; Figure 5 This is a cross-sectional view of the energy-absorbing box of this utility model; In the diagram: 1. Base; 10. Main beam; 11. Front upright beam; 12. Rear upright beam; 13. Top beam; 14. Connecting beam; 15. Reinforcing beam; 2. Slide rail; 21. Slider; 22. Energy-absorbing box; 221. Limiting clamp; 222. Clip hole; 223. Shear bolt; 3. Sub-beam; 31. Soft sleeve; 32. Spring; 4. Outer enclosure; 5. Central upright beam; 51. Connecting piece; 6. Door frame; 7. Vertical panel; 8. Absorbent cotton. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Example: Please see Figures 1-5 The high-strength special vehicle cab includes a base 1 and a main beam 10. The main beam 10 has two pairs, which are symmetrically distributed on both sides of the top of the base 1. The main beam 10 includes a front vertical beam 11 and a rear vertical beam 12. The front vertical beam 11 and the rear vertical beam 12 are connected by a top beam 13. The bottom of the front vertical beam 11 and the rear vertical beam 12 are fixedly connected to the base 1. The two ends of the top beam 13 are welded and fixed to the top of the front vertical beam 11 and the rear vertical beam 12, respectively. The front vertical beam 11, the rear vertical beam 12 and the top beam 13 are provided with slide rails 2.

[0020] In this embodiment, specific reference is made. Figure 1 as well as Figure 2 The base 1 is specifically the load-bearing base of the cab. The bottom of the base 1 is provided with a lower connection for connecting with the frame. The main beams 10 are symmetrically arranged on both sides of the top of the base 1. The main beams 10 are specifically the supporting frames on both sides of the cab. There are two main beams 10, symmetrically distributed on both sides. Each main beam 10 consists of a front upright beam 11 and a rear upright beam 12. The two are connected by a top beam 13 to form a stable frame structure. The two ends of the top beam 13 are welded and fixed to the top of the front upright beam 11 and the rear upright beam 12 respectively to form a complete main beam 10 structure.

[0021] Multiple buffer devices are provided and are evenly distributed on the slide rail 2. The multiple buffer devices are connected to the sub-beam 3. The sub-beam 3 is surrounded by an outer enclosure 4. The outer enclosure 4 surrounds the sub-beam 3 and the main beam 10. When impacted, the sub-beam 3 first contacts the outer enclosure 4, and the outer enclosure 4 transmits the impact force to the sub-beam 3. The sub-beam 3 absorbs the impact force through the buffer devices.

[0022] In this embodiment, multiple buffer devices are evenly distributed on the slide rail 2, as detailed in the following reference. Figure 2 Multiple buffer devices are distributed on the slide rails 2 of the front upright beam 11, the rear upright beam 12 and the top beam 13. Under the combined action of multiple buffer devices, the sub-beams 3 are connected. The sub-beams 3 on the front upright beam 11, the rear upright beam 12 and the top beam 13 are separate and not spliced ​​into one piece. They can be easily replaced and repaired individually after an impact, reducing maintenance costs.

[0023] Specifically, the buffer device includes a slider 21 and an energy-absorbing box 22. The slider 21 is slidably connected to the slide rail 2, and the slider 21 is fixedly connected to the energy-absorbing box 22. The energy-absorbing box 22 clamps the sub-beam 3 on one side.

[0024] The energy-absorbing box 22 is symmetrically provided with limit clamps 221 on both sides. The limit clamps 221 are attached to the main beam 10. The limit clamps 221 are provided with locking holes 222, and shear bolts 223 are embedded in the locking holes 222.

[0025] In this embodiment, specifically referring to 3 and 5, the buffer device includes a slider 21 and an energy-absorbing box 22. The slider 21 is fixedly connected to the back of the energy-absorbing box 22. The slider 21 is embedded in the slide rail 2 and can slide freely along its length. A buckle is provided at the front end of the energy-absorbing box 22. The buckle is used to clamp and connect to the secondary beam 3, or it can be directly bolted to fix the secondary beam 3. Limiting clips 221 are symmetrically provided on both sides of the energy-absorbing box 22. The limiting clips 221 are tightly fitted to the surface of the main beam 10 in a C-shape. A setting is provided on the limiting clips 221. With a locking hole 222, the shear bolt 223 fixes the limiting clamp 221 to the main beam 10 through the locking hole 222. When subjected to a major impact, the shear bolt 223 breaks when it exceeds the shear strength limit. After the shear bolt 223 breaks, the limiting clamp 221 falls off, causing the slider 21 on the back of the energy-absorbing box 22 to slide along the slide rail 2. During the sliding process, some stress is consumed, and at the same time, the energy-absorbing box 22 is subjected to pressure and undergoes plastic deformation, further absorbing the impact energy and effectively reducing the strength of the impact transmitted to the main structure of the cab.

[0026] Specifically, the energy-absorbing box 22 is equipped with an elastic element, which is specifically absorbent cotton 8, and the absorbent cotton 8 is distributed in a honeycomb pattern.

[0027] In this embodiment, specific reference is made. Figure 5When the energy-absorbing box 22 is impacted, the internal elastic element is compressed, generating a reverse buffer force, which effectively slows down the transmission speed of the impact load. The elastic element is specifically absorbent cotton 8, which fills the internal cavity of the energy-absorbing box 22 in a tightly filled honeycomb pattern. When the absorbent cotton 8 is compressed, the energy is dissipated through the gradual collapse of the honeycomb structure, effectively improving the buffering efficiency.

[0028] Specifically, multiple soft sleeves 31 are evenly provided between the sub-beam 3 and the outer enclosure 4, and multiple springs 32 are built into the soft sleeves 31.

[0029] In this embodiment, specific reference is made. Figure 4 The sub-beam 3 and the outer enclosure 4 are connected by a soft sleeve 31. The soft sleeve 31 is made of high elastic rubber material, and is fitted around the outer periphery of the sub-beam 3 and fits tightly against the inner wall of the outer enclosure 4. Multiple springs 32 are built inside the soft sleeve 31, and the two ends of the springs 32 are in contact with the sub-beam 3 and the outer enclosure 4 respectively.

[0030] Specifically, multiple connecting beams 14 are provided transversely between the two pairs of main beams 10, and reinforcing beams 15 are provided on the connecting beams 14, with the reinforcing beams 15 located in the middle of the connecting beams 14.

[0031] In this embodiment, the connecting beam 14 is specifically a crossbeam of the vehicle frame, with its two ends fixedly connected to the main beams 10 on both sides. A reinforcing beam 15 is provided in the middle of the connecting beam 14, which is the transverse center of the entire vehicle frame. The reinforcing beam 15 strengthens the overall structural rigidity and ensures stiffness.

[0032] Specifically, a middle beam 5 is provided between the front upright beam 11 and the rear upright beam 12, and a connector 51 is provided on the middle beam 5, which is connected to the side enclosure. A door frame 6 is provided on one side of the central beam 5. The door frame 6 is hinged to the front beam 11. A side panel 7 is provided between the central beam 5 and the rear beam 12.

[0033] In this embodiment, the central beam 5 is located between the front beam 11 and the rear beam 12. The central beam 5 is integrally formed with the main beam 10. The bottom of the central beam 5 is fixedly connected to the top of the base 1, and the top is fixedly connected to the top beam 13. The main function of the central beam 5 is to support the side structure of the vehicle body and enhance the overall rigidity of the vehicle body. A connector 51 is provided on the central beam 5. The connector 51 is used to connect with the side surround. Energy-absorbing foam material can also be filled between the central beam 5 and the side surround.

[0034] The door frame 6 is directly hinged to the front upright beam 11 on the main beam 10 to avoid direct impact. The side panel 7 is a side structure component connecting the middle upright beam 5 and the rear upright beam 12.

[0035] The principle of this invention is as follows: upon impact, a three-stage energy absorption mechanism is formed. The first layer is the side enclosure, which is the first to come into contact with the impact. After the side enclosure is impacted, the soft sleeve 31 is compressed, and the built-in spring 32 deforms, absorbing part of the impact energy.

[0036] Second layer: If the impact energy is large and the soft sleeve 31 cannot completely absorb it, the impact force is transmitted to the sub-beam 3. At this time, the honeycomb absorbent cotton 8 in the energy absorption box 22 begins to gradually collapse, continuously dissipating energy, effectively delaying the propagation speed of the shock wave, reducing the instantaneous stress intensity of the main structure of the driver's cab, and maximizing the protection of the safety of the people in the vehicle.

[0037] Third layer: If the impact energy continues to increase, the shear bolt 223 will break when it exceeds the shear strength limit. The shear bolt 223 will be dislodged from the fixed position in the locator 222 under the action of the impact force, causing the slider 21 on the back of the energy absorption box 22 to slide along the slide rail 2. During the sliding process, some stress is consumed, further absorbing the impact energy.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A high-strength special vehicle cab, characterized in that, include: The base (1) and the main beam (10) are provided. The main beam (10) is provided in two pairs. The two pairs of main beams (10) are symmetrically distributed on both sides of the top of the base (1). The main beam (10) includes a front upright beam (11) and a rear upright beam (12). The front upright beam (11) and the rear upright beam (12) are connected by a top beam (13). The bottom of the front upright beam (11) and the rear upright beam (12) are fixedly connected to the base (1). The two ends of the top beam (13) are welded and fixed to the top of the front upright beam (11) and the rear upright beam (12) respectively. The front upright beam (11), the rear upright beam (12) and the top beam (13) are provided with slide rails (2). A buffer device is provided, and multiple buffer devices are evenly distributed on the slide rail (2). Multiple buffer devices are connected to a sub-beam (3). An outer surround (4) is provided on the outside of the sub-beam (3). The outer surround (4) wraps around the sub-beam (3) and the main beam (10). When impacted, it first contacts the outer surround (4). The outer surround (4) transmits the impact force to the sub-beam (3). The sub-beam (3) absorbs the impact force through the buffer device.

2. The high-strength special vehicle cab according to claim 1, characterized in that: The buffer device includes a slider (21) and an energy-absorbing box (22). The slider (21) is slidably connected to the slide rail (2), and the slider (21) is fixedly connected to the energy-absorbing box (22). The energy-absorbing box (22) clamps the sub-beam (3) on one side.

3. The high-strength special vehicle cab according to claim 2, characterized in that: The energy-absorbing box (22) is symmetrically provided with limit clamps (221) on both sides. The limit clamps (221) are in contact with the main beam (10). The limit clamps (221) are provided with locking holes (222), and shear bolts (223) are embedded in the locking holes (222).

4. The high-strength special vehicle cab according to claim 3, characterized in that: The energy-absorbing box (22) is equipped with an elastic element inside, specifically an absorbent cotton (8), which is distributed in a honeycomb pattern.

5. The high-strength special vehicle cab according to claim 4, characterized in that: Multiple soft sleeves (31) are evenly provided between the sub-beam (3) and the outer enclosure (4), and multiple springs (32) are built into the soft sleeves (31).

6. The high-strength special vehicle cab according to claim 5, characterized in that: Multiple connecting beams (14) are provided transversely between the two pairs of main beams (10), and a reinforcing beam (15) is provided on the connecting beam (14), wherein the reinforcing beam (15) is located in the middle of the connecting beam (14).

7. The high-strength special vehicle cab according to claim 1, characterized in that: A middle beam (5) is provided between the front upright beam (11) and the rear upright beam (12), and a connector (51) is provided on the middle upright beam (5), which is connected to the side enclosure; A door frame (6) is provided on one side of the central beam (5), and the door frame (6) is hinged to the front beam (11). A side panel (7) is provided between the central beam (5) and the rear beam (12).

Images