A front compartment and chassis connection mechanism for unmanned logistics vehicles

Abstract

This utility model relates to the field of unmanned logistics vehicle technology, specifically a front compartment and chassis connection mechanism for an unmanned logistics vehicle, including a chassis and a front compartment; the chassis includes longitudinal beams and front / middle / rear crossbeams, the longitudinal beams corresponding to the front and middle crossbeams form a U-shaped front wheel support, the front crossbeam and the surface of the front compartment support section form a front compartment frame mounting position, and a front compartment side frame mounting position is provided on the outside of the front compartment support section; the front compartment includes a front compartment frame and a side frame (with mounting positions), covered by a front compartment shell; the front compartment side frame is equipped with a front wheel baffle, and an arc-shaped anti-collision component is connected to the front of the chassis, the front crossbeam and longitudinal beam are channel steel with grooves. This mechanism can improve the connection stability between the front compartment and the chassis, optimize the layout, organize the wiring harness, enhance protection and anti-collision performance, and improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of unmanned logistics vehicle technology, and in particular to a front compartment and chassis connection mechanism for unmanned logistics vehicles. Background Technology

[0002] Unmanned flatbed logistics vehicles are industrial-grade AMRs equipped with trackless navigation technology. With an open flatbed platform as their core structure, they possess a load capacity of 500-2000 kg and autonomous movement capabilities, adapting to standardized industrial transportation needs. They are primarily used in factories and warehouses to automate the transfer of raw materials, semi-finished products, and palletized goods, connecting production lines, optimizing warehouse operations, reducing costs, improving efficiency, and enhancing transportation accuracy.

[0003] The front compartment of the unmanned flatbed logistics vehicle is a key area that integrates core components such as control modules and sensing sensors. Its connection structure with the chassis is directly related to the stability, durability and assembly efficiency of the equipment. However, the existing connection mechanism has many defects. Regarding connection stability, the front compartment and chassis are mostly fixed by simple bolts, lacking a two-way positioning structure, making the front compartment prone to lateral displacement during vehicle operation. In terms of installation layout, there are no clearly defined pre-designed installation areas for the components in the front compartment, resulting in low space utilization and potential positional interference between different components. In terms of wiring harness management, the wiring harnesses in the front compartment and chassis front end are mostly exposed, making them susceptible to wear and tear due to friction and collisions during driving, increasing the difficulty and cost of later maintenance. In terms of protection, debris and water carried out by the front wheels can easily splash onto critical components in the front compartment or chassis, and the internal structure of the front compartment lacks effective external protection, making it susceptible to corrosion from environmental factors such as dust and moisture. In terms of collision protection, there is a lack of dedicated collision protection structure at the front of the front compartment, which can easily directly damage the core components in the front compartment and the front structure of the chassis in the event of a collision. In terms of assembly efficiency, there are no standardized installation positions or unified assembly specifications, and the manual operation process is complex and time-consuming, which seriously restricts the operational reliability and production efficiency of unmanned logistics vehicles.

[0004] Therefore, there is an urgent need for a structurally optimized connection mechanism between the front compartment and the chassis to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the problems of the prior art and provide a front compartment and chassis connection mechanism for unmanned logistics vehicles, which solves the technical problems of unstable connection between the front compartment and chassis, chaotic layout, messy wiring harness, insufficient protection, lack of collision protection, and inefficient assembly.

[0006] The above objectives are achieved through the following technical solutions: A front compartment and chassis connection mechanism for an unmanned logistics vehicle includes a chassis and a front compartment. The chassis includes longitudinal beams symmetrically arranged on both sides, and a front crossbeam, a middle crossbeam, and a rear crossbeam arranged parallel to each other between two of the longitudinal beams. The two longitudinal beams corresponding to the front crossbeam and the middle crossbeam form a Z-shaped front wheel support. The front wheel support includes a front compartment support section and a curved section connected to each other on the same longitudinal beam. The surfaces of the front crossbeam and the two front compartment support sections form front compartment frame mounting positions, and the outer sides of the two front compartment support sections are provided with front compartment side frame mounting positions. The forward cabin includes a forward cabin frame and forward cabin side frame symmetrically arranged below the forward cabin frame. The forward cabin frame is installed at the forward cabin frame mounting position, and the forward cabin side frame is installed at the forward cabin side frame mounting position. A forward cabin shell is provided on the outer side of the forward cabin frame and the forward cabin side frame.

[0007] Furthermore, the front cabin frame includes a short front cabin support rod and a long front cabin support rod that are parallel to each other and located at the bottom; the outer side of the short front cabin support rod is fixed to the surface of the front crossbeam through a short support rod right angle iron, and the bottom surface of the long front cabin support rod is fixed to the outer side of the two front cabin support sections through a long support rod right angle iron.

[0008] Furthermore, the short strut in the front compartment and the long strut in the front compartment are connected by a connecting rod at the bottom of the front compartment.

[0009] Furthermore, the front cabin side frame is located below the front cabin bottom connecting rod, and the front cabin side frame is fixedly connected to the front cabin frame mounting position by screws.

[0010] Furthermore, the front crossbeam and the two longitudinal beams are all channel steel with grooves on the inner wall, and the grooves are used to accommodate the wiring harness of the unmanned logistics vehicle.

[0011] Furthermore, a front wheel baffle is provided on the front cabin side frame, which is used to block debris or water flow brought out by the front wheels during travel.

[0012] Furthermore, the front compartment also includes a front anti-collision assembly, which includes a laterally arranged anti-collision strip, and the anti-collision strip is connected to the bottom edge of the front crossbeam through a set of anti-collision strip brackets.

[0013] Furthermore, the anti-collision strip has an arc-shaped structure.

[0014] Furthermore, the mounting positions of the front cabin side frame are symmetrically distributed on the outer sides of the two front cabin support sections.

[0015] Furthermore, the front cabin frame mounting position is formed by the upper surface of the front crossbeam and the upper surfaces of the two front cabin support sections.

[0016] This utility model provides a front compartment and chassis connection mechanism for unmanned logistics vehicles. It optimizes the layout through preset installation positions; achieves bidirectional positioning of the front compartment frame through angle iron, improving connection stability; uses channel steel grooves to organize the wiring harness and reduce maintenance difficulty; enhances protection through front wheel baffles and front compartment shell, and uses arc-shaped anti-collision strips to buffer collisions; this mechanism can also improve assembly efficiency and is suitable for heavy-duty scenarios. Attached Figure Description

[0017] Figure 1 This is an assembly diagram of a front compartment and chassis connection mechanism for an unmanned logistics vehicle according to the present invention. Figure 2 This is a schematic diagram of the assembly of the front compartment shell with the front compartment and chassis in the front compartment and chassis connection mechanism for an unmanned logistics vehicle described in this utility model. Figure 3 This is a schematic diagram showing the connection details between the front compartment frame and the chassis in the front compartment and chassis connection mechanism for an unmanned logistics vehicle described in this utility model. Figure 4 This is a schematic diagram showing the connection details between the front anti-collision component and the chassis in the front compartment and chassis connection mechanism for an unmanned logistics vehicle described in this utility model.

[0018] Illustration markings: 1-Chassis, 101-Longitudinal beam, 102-Front end crossbeam, 103-Intermediate crossbeam, 104-Tail end crossbeam, 105-Front wheel support section, 106-Front compartment support section, 107-Bending section, 108-Front compartment frame mounting position, 109-Front compartment side frame mounting position; 2-Front compartment, 201-Front compartment frame, 202-Front compartment side frame, 203-Front compartment short support rod, 204-Front compartment long support rod, 205-Front compartment bottom connecting rod, 206-Front wheel baffle; 3-Forward cabin outer shell; 4-Short support rod right angle iron; 5-Long support rod right angle iron; 6-Front bumper assembly, 601-Bumper strip, 602-Bumper strip bracket; 7- Groove. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] like Figures 1-3 As shown, this solution provides a front compartment and chassis connection mechanism for an unmanned logistics vehicle, including a chassis 1 and a front compartment 2. The specific structure, connection method and function of each component are as follows: The chassis 1 is the load-bearing foundation of the unmanned logistics vehicle, including longitudinal beams 101 arranged symmetrically on the left and right. The longitudinal beams 101 extend along the length of the unmanned logistics vehicle and are made of high-strength steel to ensure structural rigidity under heavy load. A front crossbeam 102, a middle crossbeam 103 and a rear crossbeam 104 are arranged in parallel between the two longitudinal beams 101. All three extend along the width of the unmanned logistics vehicle and together with the longitudinal beams 101 form a rectangular frame structure.

[0021] The front crossbeam 102 and the two longitudinal beams 101 corresponding to the middle crossbeam 103 are bent in a zigzag shape to form the front wheel support part 105. This part includes a front cabin support section 106 and a curved section 107 that are connected to each other. The curved section 107 is adapted to the installation space of the front wheel, while the front cabin support section 106 provides an installation base for the front cabin 2.

[0022] The upper surface of the front crossbeam 102 and the upper surfaces of the two front cabin support sections 106 together form a front cabin frame mounting position 108 for positioning and installing the front cabin frame 201; the outer surfaces of the two front cabin support sections 106 are also symmetrically provided with front cabin side frame mounting positions 109 for positioning and installing the front cabin side frame 202.

[0023] like Figure 3 and Figure 4 As shown, in this embodiment, the front compartment 2 is the integration area of ​​the core components of the unmanned logistics vehicle, including the front compartment frame 201 and the front compartment side frame 202, specifically: The bottom of the front cabin frame 201 is provided with parallel front cabin short support rods 203 and front cabin long support rods 204, both of which are made of aluminum alloy square tubes to balance lightweight and rigidity. The outer side of the front cabin short support rod 203 is fixed to the surface of the front crossbeam 102 by a short support rod right angle iron 4 made of galvanized angle iron with a specification of 40mm×40mm. The bottom surface of the front cabin long support rod 204 is fixed to the outer side of the front cabin support section 106 by a long support rod right angle iron 5 of the same specification of galvanized angle iron. This structure realizes the bidirectional positioning of the front cabin frame 201 and prevents it from shifting left and right relative to the chassis 1.

[0024] The front cabin bottom connecting rod 205 connects the front cabin short support rod 203 and the front cabin long support rod 204 to strengthen the overall rigidity of the front cabin frame 201 and prevent local deformation.

[0025] The front cabin side frame 202 is symmetrically arranged below the front cabin frame 201, directly below the front cabin bottom connecting rod 205, and is fixedly connected to the front cabin frame mounting position 108 by M8 screws to ensure the reliability of the connection.

[0026] like Figure 2 As shown, in this embodiment, the front cabin shell 3 covers the outer side of the front cabin frame 201 and the front cabin side frame 202. It is made of ABS engineering plastic and has waterproof and dustproof performance with a protection level of IP54, which can provide physical protection for the control module, wiring harness and other structures inside the front cabin.

[0027] like Figure 1 and Figure 2 As shown, the front wheel baffle 206 is installed on the front compartment side frame 202, located above the front wheel. It is made of hard plastic and can effectively block debris and water brought out by the front wheel during driving, preventing them from splashing onto the front compartment or chassis components.

[0028] The front anti-collision assembly 6 includes an arc-shaped anti-collision strip 601 and a set of anti-collision strip brackets 602; the anti-collision strip 601 is connected to the bottom edge of the front crossbeam 102 through the anti-collision strip brackets 602, which can buffer the impact force of external collisions and protect the front compartment and the front structure of the chassis.

[0029] In this embodiment, the front crossbeam 102 and the two longitudinal beams 101 are channel steel with grooves 7 on the inner wall, which can accommodate the wiring harness of the unmanned logistics vehicle, such as control wiring harness and sensor wiring harness, to achieve hidden wiring and avoid exposed wiring harness wear or interference with components.

[0030] As a specific embodiment of this solution, a front compartment and chassis connection mechanism for an unmanned logistics vehicle is provided, which is adapted to an unmanned flatbed vehicle with a load capacity of 1500kg. The specific assembly steps are as follows: Chassis frame assembly: The two longitudinal beams 101 are connected to the front crossbeam 102, the middle crossbeam 103 and the rear crossbeam 104 by bolts to form the chassis frame 1; the connection area between the front crossbeam 102 and the longitudinal beam 101 is bent to form a Z-shaped front wheel support part 105, and the front cabin frame mounting position 108 and the front cabin side frame mounting position 109 are machined in the corresponding positions.

[0031] Forward cabin frame installation: The forward cabin short support rod 203 is fixed to the upper surface of the front crossbeam 102 by the short support rod right angle iron 4, and the forward cabin long support rod 204 is fixed to the outer side of the two forward cabin support sections 106 by the long support rod right angle iron 5. Then, the forward cabin short support rod 203 and the forward cabin long support rod 204 are connected by the forward cabin bottom connecting rod 205 to complete the assembly of the forward cabin frame 201.

[0032] Installation of the front cabin side frame: Fix the front cabin side frame 202 to the front cabin side frame mounting position 109 with M8 screws, and ensure that it is located directly below the front cabin bottom connecting rod 205.

[0033] Auxiliary structure installation: Install the front wheel baffle 206 on the front cabin side frame 202; fix the arc-shaped anti-collision strip 601 to the bottom edge of the front crossbeam 102 through the anti-collision strip bracket 602; finally, cover the outer surface of the front cabin shell 3 on the outer side of the front cabin frame 201 and the front cabin side frame 202.

[0034] Wiring harness arrangement: The control wiring harness and sensor wiring harness of the unmanned logistics vehicle are inserted into the grooves 7 of the front crossbeam 102 and the longitudinal beam 101 to complete the hidden arrangement of the wiring harness.

[0035] After the connection mechanism of this embodiment is assembled, the connection gap between the front cabin and the chassis is less than 1mm, and the structural rigidity meets the 1500kg heavy load requirement, effectively solving various technical problems of existing connection mechanisms.

[0036] The above description is only for illustrating the embodiments of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A front compartment and chassis connection mechanism for an unmanned logistics vehicle, comprising a chassis (1) and a front compartment (2), characterized in that, The chassis (1) includes longitudinal beams (101) arranged symmetrically on the left and right, and a front crossbeam (102), a middle crossbeam (103) and a rear crossbeam (104) arranged parallel to each other between the two longitudinal beams (101); the two longitudinal beams (101) corresponding to the front crossbeam (102) and the middle crossbeam (103) form a front wheel support part (105) in the shape of a zigzag, and the front wheel support part (105) includes a front cabin support section (106) and a curved section (107) connected to each other on the same longitudinal beam (101); the surfaces of the front crossbeam (102) and the two front cabin support sections (106) form a front cabin frame mounting position (108), and the outer sides of the two front cabin support sections (106) are provided with a front cabin side frame mounting position (109). The front cabin (2) includes a front cabin frame (201) and a front cabin side frame (202) symmetrically arranged below the front cabin frame (201). The front cabin frame (201) is installed on the front cabin frame mounting position (108), and the front cabin side frame (202) is installed on the front cabin side frame mounting position (109).

2. The front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 1, characterized in that, The front cabin frame (201) includes a front cabin short support rod (203) and a front cabin long support rod (204) set at the bottom and parallel to each other; the outer side of the front cabin short support rod (203) is fixed to the surface of the front crossbeam (102) through a short support rod right angle iron (4), and the bottom surface of the front cabin long support rod (204) is fixed to the outer side of the two front cabin support sections (106) through a long support rod right angle iron (5).

3. The front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 2, characterized in that, The short support rod (203) and the long support rod (204) of the front cabin are connected by a bottom connecting rod (205) of the front cabin.

4. The front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 3, characterized in that, The front cabin side frame (202) is located below the front cabin bottom connecting rod (205), and the front cabin side frame (202) is fixedly connected to the front cabin frame mounting position (108) by screws.

5. The front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 1, characterized in that, The front crossbeam (102) and the two longitudinal beams (101) are both channel steel with grooves (7) on the inner wall, and the grooves (7) are used to accommodate the wiring harness of the unmanned logistics vehicle.

6. The front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 1, characterized in that, The front cabin side frame (202) is provided with a front wheel baffle (206), which is used to block debris or water flow brought out during the front wheel's movement.

7. The front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 1, characterized in that, The front compartment (2) also includes a front anti-collision assembly (6), which includes a horizontally arranged anti-collision strip (601) and the anti-collision strip (601) is connected to the bottom edge of the front crossbeam (102) through a set of anti-collision strip brackets (602).

8. The front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 7, characterized in that, The anti-collision strip (601) has an arc-shaped structure.

9. A front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 1, characterized in that, The mounting positions (109) of the front cabin side frame are symmetrically distributed on the outer sides of the two front cabin support sections (106).

10. A front compartment and chassis connection mechanism for an unmanned logistics vehicle according to claim 1, characterized in that, The front cabin frame mounting position (108) is formed by the upper surface of the front crossbeam (102) and the upper surfaces of the two front cabin support sections (106).

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