Detachable tractor

Abstract

The invention belongs to the technical field of tractor manufacturing, and discloses a detachable tractor. The vehicle comprises a main body frame, frame assembling assemblies, cab assemblies and wheels, the wheels are installed on the lower side of the main body frame, the frame assembling assemblies are installed at the front end and the rear end of the main body frame, the cab assemblies are detachably connected to the main body frame, the frame assembling assemblies are arranged on the front side and the rear side of the cab assemblies, and a battery is installed on the lower side of a cab; the problem that in the prior art, when a battery on the lower side of a cab is maintained, the cab is complex to dismantle is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tractor manufacturing, and in particular, to a detachable tractor. Background Art

[0002] As an important piece of equipment in the modern logistics transportation field, the structural design and functional layout of a tractor directly affect the performance and usage efficiency of the whole vehicle. The structural system of traditional tractors is mainly based on the space requirements of the mechanical power system, and is composed of core components such as a cab, a frame assembly, a front suspension assembly, and a rear suspension assembly through a welding process. Although this construction method ensures the overall rigidity of the vehicle structure, there are obvious limitations in terms of space utilization efficiency. With the global energy structure adjustment and the deepening of environmental protection policies, the electrification transformation of transportation equipment has become an irreversible industry trend, which poses new technical requirements for the structural design of tractors.

[0003] In the architecture system of traditional fuel-powered tractors, the installation position of the engine and its supporting systems occupies the main space in the front part of the vehicle, and the volume and weight of the power assembly impose rigid constraints on the overall vehicle layout. When the power system is replaced from an internal combustion engine to an electric motor, although the volume of the power unit is reduced, the unique battery pack module of the electric drive system brings new space configuration challenges. The current common solution is to install the drive motor power supply system on the side of the cab. Although this layout simplifies the cable connection path, it significantly increases the overall external dimension of the vehicle. Especially for tractors that need to frequently enter and exit space-restricted operation scenarios such as warehouses and ports, the excessive volume not only limits the maneuverability of the vehicle, but may also lead to a reduction in the operation radius, directly affecting the improvement of transportation efficiency.

[0004] In recent years, the industry has gradually explored an innovative solution to integrate the power battery pack under the chassis of the cab to solve the problem of space utilization. This layout design effectively reduces the horizontal projection area of the vehicle through three-dimensional space utilization, making the overall vehicle structure more compact. The centralized layout in the chassis area not only optimizes the vehicle's center of gravity distribution, but also enhances the driving stability, theoretically achieving the dual goals of function integration and space optimization. However, after in-depth application, it is found that while this integrated design brings space advantages, it also exposes significant maintenance and repair problems. The battery pack and its supporting auxiliary systems such as cooling pipelines and high-voltage wire harnesses are completely enclosed under the cab, and any routine inspection or fault troubleshooting involving the power supply system requires destructive disassembly of the main structure of the cab.

[0005] This maintenance mode causes various troubles to vehicle operation units. First of all, each maintenance requires the use of professional cutting equipment to partially remove the cab, which not only increases the time cost of maintenance operations but also causes irreversible damage to the integrity of the vehicle body structure. Secondly, the enclosed layout makes it difficult to conduct daily inspections. Operators cannot timely detect potential hidden dangers such as deformation of the battery pack shell and loosening of connecting parts through conventional inspection means, increasing the safety risks during use. More critically, the complex disassembly and assembly process directly leads to an extended maintenance cycle, which may cause significant economic losses for logistics transport vehicles that need to maintain high-intensity continuous operation. In addition, metal debris and welding residues generated during repeated disassembly and assembly may also cause secondary pollution to the surface of the battery pack and surrounding electrical components, affecting the service life of core components.

[0006] In addition, the current tractor does not have air-conditioning components installed, resulting in the driver in the cab feeling cold in winter during the working process of the tractor. At the same time, the cab window is prone to fogging, and the temperature inside the cab is relatively high in summer. Summary of the Invention

[0007] The purpose of the present invention is to provide a detachable tractor to solve the problem that it is relatively complicated to remove the cab when repairing the battery under the cab in the prior art.

[0008] To achieve this purpose, the present invention adopts the following technical solutions: The present invention provides a detachable tractor, including a main body frame, a frame assembly, a cab assembly, and wheels. The wheels are installed on the lower side of the main body frame. The frame assembly is installed at the front and rear ends of the main body frame. The cab assembly is detachably connected to the main body frame. The frame assembly is arranged on the front and rear sides of the cab assembly. A battery is installed under the cab.

[0009] Preferably, the frame assembly includes a front insurance part. The front insurance part includes a front cover and a front bracket. A front hinge is installed at the edge of the front cover, and the other side of the front hinge is installed on the front bracket. The front bracket is detachably installed on the main body frame near the front side of the cab assembly.

[0010] Preferably, the frame assembly further includes a rear insurance part. The rear insurance part includes a rear cover and a rear bracket. The rear bracket is installed on the main body frame near the rear side of the cab assembly. The rear cover is detachably installed on the main body frame, and the rear cover is connected to the rear bracket.

[0011] Preferably, front suspension members and rear suspension members are installed on the main body frame. Screw holes are provided on both the front suspension members and the rear suspension members. Bolts pass through the bottom plate of the cab assembly and are screwed into the screw holes.

[0012] Preferably, a pipeline assembly, a water pump assembly and a PTC assembly are installed on the main frame on the front side of the cab assembly. A heating box is installed inside the cab assembly. The pipeline assembly, the water pump assembly and the PTC assembly are connected to the heating box;

[0013] A filter is installed on the main frame on the front side of the cab assembly. The filter can filter the air entering the cab assembly;

[0014] Doors are rotatably installed on both sides of the cab assembly. An instrument panel assembly is installed inside the cab. An air duct is installed inside the instrument panel assembly. A filter is installed at the front end of the air duct.

[0015] Preferably, a front glass window is installed on the front side of the cab assembly. A front windshield hinge is installed on the upper side of the front glass window. The front windshield hinge is connected to the top of the cab. Connecting plates are installed on both sides of the front glass window. One side of the connecting plate is rotatably connected to the cab assembly. The other side of the connecting plate is rotatably connected to the front glass window. A limiting groove is formed on the connecting plate. A fixing column passes through the limiting groove and is screwed to the cab assembly.

[0016] Preferably, a first sliding glass is installed on the door. The first sliding glass slides along the slot on the door.

[0017] Preferably, a chute is formed on the rear side of the cab assembly. A second sliding glass is installed in the chute. The second sliding glass moves along the length direction of the chute.

[0018] Preferably, the air duct is formed by welding plates or the air duct is formed by stamping plates.

[0019] Preferably, a compressor can also be installed on the main frame on the front side of the cab assembly. The compressor can blow cold air into the cab assembly.

[0020] Beneficial effects: Before overhauling the battery, the cab assembly can be detached from the main frame first to expose the battery installed on the upper side of the main frame, which is convenient for maintenance personnel to overhaul the battery and the surrounding circuit pipelines. After the overhaul is completed, the cab assembly can be directly installed on the main frame, which will not cause secondary damage to the tractor and reduce the maintenance difficulty. Description of the Drawings

[0021] Figure 1 is the main body diagram of the detachable tractor of the present invention;

[0022] Figure 2 is the disassembly schematic diagram of the front cover of the present invention;

[0023] Figure 3 It is the separation diagram of the cab assembly of the present invention;

[0024] Figure 4 It is the connection diagram of the pipeline assembly of the present invention;

[0025] Figure 5 It is the installation diagram of the pipeline assembly of the present invention;

[0026] Figure 6 It is the enlarged diagram of the connecting plate of the present invention.

[0027] In the figure: 1. Main body frame; 2. Cab assembly; 3. Front cover; 4. Front bracket; 5. Front hinge; 6. Rear cover; 7. Rear bracket; 8. Front suspension member; 9. Rear suspension member; 10. Bolt; 11. Water pump assembly; 12. Pipeline assembly; 13. PTC assembly; 14. Heating box; 15. Filter; 16. Instrument panel assembly; 17. Air duct; 18. Front glass window; 19. Front windshield hinge; 20. Connecting plate; 201. Limit groove; 21. Fixed column; 22. First push-pull glass; 23. Second push-pull glass. Detailed implementation manners

[0028] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention are shown in the drawings rather than all the structures.

[0029] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "beneath", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature.

[0031] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] As the core equipment for logistics transportation, the structural design of the tractor directly affects the operation efficiency. Traditional models adopt a welded frame structure, which consists of a cab, a frame assembly, and front and rear suspension systems. Although it ensures the structural rigidity, the space utilization rate is low. Under the trend of electrification transformation, the change of the power system has caused new design contradictions: the original engine compartment space of the fuel vehicle is replaced by a motor with a reduced volume, but the newly added battery pack brings layout challenges.

[0033] The current mainstream solution places the power supply system on the side of the cab. Although it simplifies the circuit connection, it leads to the expansion of the vehicle body size, seriously affecting the passability and operation efficiency in narrow scenarios such as ports and warehouses. The chassis integration solution proposed by the industry innovation arranges the battery pack under the cab, reducing the projected area and optimizing the center of gravity distribution through a three-dimensional layout. However, this design exposes serious maintenance defects - components such as the battery pack, its cooling pipelines, and high-voltage wire harnesses are completely enclosed, and any maintenance requires cutting and disassembling the main body of the cab, resulting in three major problems: one is that the maintenance is time-consuming and damages the vehicle body structure, the second is that it hinders the daily inspection of potential hazards, and the third is that repeated disassembly and assembly generate metal debris that pollutes the electrical components. In addition, existing tractors generally do not have an air conditioning system, resulting in a cold in winter and hot in summer and foggy driving environment, directly affecting driving safety and operation comfort.

[0034] To solve the above problems, as Figures 1 to 6 shown, the present invention provides a detachable tractor, which includes a main frame 1, a frame assembly, a cab assembly 2, and wheels. The wheels are installed on the lower side of the main frame 1, the frame assembly is installed at both the front and rear ends of the main frame 1, the cab assembly 2 is detachably connected to the main frame 1, the frame assembly is arranged on both the front and rear sides of the cab assembly 2, and a battery is installed on the lower side of the cab.

[0035] Install the vehicle frame assembly on the upper side of the main frame 1. Various parts related to the detachable tractor can be installed on the vehicle frame assembly, and the cab assembly 2 can be installed on the vehicle frame assembly. The cab assembly 2 is installed on the main frame 1 in a detachable connection form. If it is necessary to repair the battery and surrounding pipelines under the cab, the connection between the cab assembly 2 and the main frame 1 is released, and the cab assembly 2 is moved down, then the battery and surrounding pipelines installed on the main frame 1 under the cab assembly 2 can be repaired. Furthermore, the difficulty of repairing the detachable tractor can be reduced. At the same time, installing the battery under the cab can reduce the working radius of the tractor and make the tractor more flexible.

[0036] The vehicle frame assembly includes a front insurance part. The front insurance part includes a front cover 3 and a front bracket 4. The edge of the front cover 3 is installed with a front hinge 5. The other side of the front hinge 5 is installed on the front bracket 4. The front bracket 4 is detachably installed on the main frame 1 near the front side of the cab assembly 2. The two sides of the front hinge 5 are usually fixed on the front bracket 4 and the front cover 3 through detachable parts such as screws. Before disassembling the cab assembly 2, it is necessary to first separate the front cover 3 from the front hinge 5, and then separate and remove the front hinge 5 and the front bracket 4 from the main frame 1. This can reserve a larger space for the disassembly of the cab assembly 2, facilitate the subsequent disassembly and installation of the cab assembly 2, reduce the disassembly and installation difficulty, and at the same time, after removing the front bracket 4, it also avoids the cab assembly 2 from colliding with other parts on the detachable tractor.

[0037] The vehicle frame assembly further includes a rear insurance part. The rear insurance part includes a rear cover 6 and a rear bracket 7. The rear bracket 7 is installed on the main frame 1 near the rear side of the cab assembly 2. The rear cover 6 is detachably installed on the main frame 1, and the rear cover 6 is connected to the rear bracket 7. In order to further modularize the detachable tractor, both the rear bracket 7 and the rear cover 6 are installed on the main frame 1 in the form of fasteners, so as to facilitate removing some parts that may block during the maintenance process and provide a larger installation position for the maintenance and installation space.

[0038] The front suspension member 8 and the rear suspension member 9 are installed on the main frame 1. Screw holes are provided on both the front suspension member 8 and the rear suspension member 9. The bolt 10 passes through the bottom plate of the cab assembly 2 and is screwed into the screw hole. The cab assembly 2 of the present invention is fixed by screwing the bolt 10. During the process of disassembling the cab assembly 2, the bolt 10 can be directly removed, and then the cab assembly 2 is lifted out of the main frame 1. The front suspension member 8 is two groups of beam bodies, and screw holes are provided on the beam bodies. The rear suspension member 9 is an installation platform, and two groups of beam bodies are installed on the installation platform.

[0039] On the main frame 1 on the front side of the cab assembly 2, a pipeline assembly 12, a water pump assembly 11 and a PTC assembly 13 are installed. Inside the cab assembly 2, a heating box 14 is installed. The pipeline assembly 12, the water pump assembly 11 and the PTC assembly 13 are connected to the heating box 14. The above components are common heating parts inside the vehicle, which can blow hot air into the cab assembly 2, thereby raising the temperature inside the cab assembly 2 or removing the frost on the front glass window 18. The above working process is the prior art and will not be elaborated here. Among them, the pipeline assembly 12, the water pump assembly 11 and the PTC assembly 13 and the heating box 14 are all installed on the main frame 1 in the form of fasteners for easy disassembly during subsequent maintenance.

[0040] A filter 15 is installed on the main frame 1 on the front side of the cab assembly 2. The filter 15 can filter the air entering the cab assembly 2. Installing the filter 15 can filter the dust in the outside air and keep the air entering the inside of the cab assembly 2 clean.

[0041] Doors are rotatably installed on both sides of the cab assembly 2. An instrument panel assembly 16 is installed inside the cab. An air duct 17 is installed inside the instrument panel assembly 16. The filter 15 is installed at the front end of the air duct 17. The air outside the cab enters the inside of the cab assembly 2 through the air duct 17 and can be heated by the heating box 14 in the air duct 17, so that the air flow entering the inside of the cab assembly 2 is an air flow with temperature, and the temperature inside the cab assembly 2 is raised.

[0042] A front glass window 18 is installed on the front side of the cab assembly 2. A front windshield hinge 19 is installed on the upper side of the front glass window 18. The front windshield hinge 19 is connected to the top of the cab. Connecting plates 20 are installed on both sides of the front glass window 18. One side of the connecting plate 20 is rotatably connected to the cab assembly 2, and the other side of the connecting plate 20 is rotatably connected to the front glass window 18. A limiting groove 201 is formed on the connecting plate 20. The fixing column 21 passes through the limiting groove 201 and is screwed to the cab assembly 2. Pull out the fixing column 21 and push the front glass window 18, so that the front glass window 18 can rotate around the front windshield hinge 19, and thus a gap can be formed between the front glass window 18 and the cab assembly 2. The air flow can enter from the above gap, and finally the temperature inside the cab assembly 2 can be reduced. After the front glass window 18 rotates to a certain angle, the limiting groove 201 on the connecting plate 20 coincides with the insertion hole of the fixing column 21. At this time, insert and fix the fixing column 21, and the connecting plate 20 can be fixed, and then the front glass window 18 can be supported and locked through the connecting plate 20, so that the front glass window 18 can remain stable during the driving of the tractor.

[0043] A first sliding glass 22 is installed on the vehicle door, and the first sliding glass 22 slides along a slot on the vehicle door. A chute is provided at the rear side of the cab assembly 2, and a second sliding glass 23 is installed in the chute. The second sliding glass 23 moves along the length direction of the chute. Through the first sliding glass 22 and the second sliding glass 23, the inside of the cab assembly 2 can be directly communicated with the outside world, and the temperature inside the cab assembly 2 can be reduced.

[0044] The air duct 17 is formed by welding plates or the air duct 17 is formed by stamping plates. The plates are connected by welding, which can reduce costs, and the airtightness can be improved by stamping the entire plate.

[0045] A compressor can also be installed on the main frame 1 on the front side of the cab assembly 2. The compressor can blow cold air into the cab assembly 2. A compressor can also be installed on the main frame 1 of the present invention. The compressor is the main component for blowing cold air in existing vehicles, and its technical principle has been made public and will not be elaborated here. Through the above installation method, the compressor and the corresponding refrigeration equipment can be installed on the main frame 1, and the temperature inside the cab assembly 2 can be reduced.

[0046] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A detachable tractor, characterized in that, It includes a main frame (1), a vehicle frame assembly, a cab assembly (2) and wheels. The wheels are installed on the lower side of the main frame (1), the vehicle frame assembly is installed at the front and rear ends of the main frame (1), the cab assembly (2) is detachably connected to the main frame (1), the vehicle frame assembly is arranged on both the front and rear sides of the cab assembly (2), and a battery is installed under the cab.

2. The detachable tractor according to claim 1, wherein The vehicle frame assembly includes a front bumper part. The front bumper part includes a front cover (3) and a front bracket (4). A front hinge (5) is installed at the edge of the front cover (3), and the other side of the front hinge (5) is installed on the front bracket (4). The front bracket (4) is detachably installed on the main frame (1) near the front side of the cab assembly (2).

3. The detachable tractor according to claim 2, characterized in that, The vehicle frame assembly further includes a rear bumper part. The rear bumper part includes a rear cover (6) and a rear bracket (7). The rear bracket (7) is installed on the main frame (1) near the rear side of the cab assembly (2). The rear cover (6) is detachably installed on the main frame (1), and the rear cover (6) is connected to the rear bracket (7).

4. The detachable tractor according to claim 3, characterized in that, A front suspension member (8) and a rear suspension member (9) are installed on the main frame (1). Screw holes are provided on both the front suspension member (8) and the rear suspension member (9). A bolt (10) passes through the bottom plate of the cab assembly (2) and is screwed into the screw hole.

5. The detachable tractor according to claim 1, characterized in that, A pipeline assembly (12), a water pump assembly (11) and a PTC assembly (13) are installed on the main frame (1) on the front side of the cab assembly (2). A heating box body (14) is installed inside the cab assembly (2). The pipeline assembly (12), the water pump assembly (11) and the PTC assembly (13) are connected to the heating box body (14); A filter (15) is installed on the main frame (1) on the front side of the cab assembly (2). The filter (15) can filter the air entering the cab assembly (2). Doors are rotatably installed on both sides of the cab assembly (2). An instrument panel assembly (16) is installed inside the cab. An air duct (17) is installed inside the instrument panel assembly (16), and a filter (15) is installed at the front end of the air duct (17).

6. The detachable tractor according to claim 5, wherein, A front glass window (18) is installed on the front side of the cab assembly (2). A front windshield hinge (19) is installed on the upper side of the front glass window (18). The front windshield hinge (19) is connected to the top of the cab. Connecting plates (20) are installed on both sides of the front glass window (18). One side of the connecting plate (20) is rotatably connected to the cab assembly (2), and the other side of the connecting plate (20) is rotatably connected to the front glass window (18). A limiting slot (201) is provided on the connecting plate (20), and a fixing column (21) passes through the limiting slot (201) and is screwed into the cab assembly (2).

7. The detachable tractor according to claim 5, characterized in that, A first sliding glass (22) is installed on the door, and the first sliding glass (22) slides along the slot on the door.

8. The detachable tractor according to claim 5, characterized in that, A chute is provided at the rear side of the cab assembly (2), and a second sliding glass (23) is installed in the chute, and the second sliding glass (23) moves along the length direction of the chute.

9. The detachable tractor according to claim 5, characterized in that, The air duct (17) is formed by welding plates or the air duct (17) is formed by stamping plates.

10. The detachable tractor according to claim 5, characterized in that, A compressor can also be installed on the main frame (1) at the front side of the cab assembly (2), and the compressor can blow cold air into the cab assembly (2).

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