A tractor frame and a tractor

Abstract

The present application relates to the technical field of towing vehicle, especially to a towing vehicle frame and towing vehicle, comprising a front end platform for installing a driver seat; a connecting panel connected with the end of the front end platform; and a cross beam group extending rearwardly in the middle of the connecting panel; the cross beam group comprises a left cross beam and a right cross beam, and a bottom plate at the bottom of the left cross beam and the right cross beam, a sunken space is formed between the bottom plate and the left cross beam and the right cross beam; the sunken space is used for installing towing vehicle components. The towing vehicle frame, the towing vehicle frame and the towing vehicle, the sunken space can accommodate the engine and the gearbox, so that the components of the towing vehicle do not exceed the height of the cross beam group after installation, the effect of lowering the body of the towing vehicle is achieved, and the stability of the towing vehicle and the rigidity of the frame are improved.

Description

Technical Field

[0001] This invention relates to the technical field of tractor vehicles, and more particularly to a tractor vehicle frame and a tractor vehicle. Background Technology

[0002] Aircraft towing vehicles are indispensable special vehicles providing ground support services for aircraft relocation. In recent years, my country's aircraft towing vehicle technology has developed rapidly. The chassis, as the main body of the towing vehicle, plays a vital role and occupies an important position in the overall vehicle design. It not only bears the weight of all the vehicle's components but also ensures sufficient strength and rigidity to meet load-bearing capacity requirements while maintaining a relatively low vehicle body. Given the crucial role the chassis plays in the towing vehicle's structure, it must possess high strength. Summary of the Invention

[0003] In view of the problems existing in the current tractor frame, the present invention is proposed.

[0004] Therefore, one object of the present invention is to provide a tractor frame, the purpose of which is to provide a frame with high strength.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a tractor frame, comprising, The front-end platform is used to install the driver's seat; A connection panel for connecting to the front-end platform; and, The crossbeam assembly extends rearward from the center of the connecting panel; The beam assembly includes a left beam and a right beam, as well as a base plate at the bottom of the left beam and the right beam, and a sunken space is formed between the base plate and the left beam and the right beam. The sunken space is used to install tractor components.

[0006] As a preferred embodiment of the tractor frame of the present invention, the front-end platform includes a base, a front bumper, and a vertical plate, wherein, The connecting panel is connected to one end of the base; The front bumper is mounted on the other end of the base; The upright plate is positioned between the base and the front bumper.

[0007] In a preferred embodiment of the tractor frame of the present invention, the bottom height of the base plate does not exceed the bottom of the front platform.

[0008] In a preferred embodiment of the tractor frame of the present invention, the left crossbeam and the right crossbeam are integrally formed from plates, and the outer contours of the left crossbeam and the right crossbeam are consistent.

[0009] As a preferred embodiment of the tractor frame of the present invention, the crossbeam assembly includes a front end, a middle part and a rear end; The front end is connected to the connecting panel; The middle section is connected to the base plate; The rear end is connected to a rear support.

[0010] As a preferred embodiment of the tractor frame of the present invention, the front end is provided with a front axle groove, which is used to install the front axle; The rear end is provided with a rear axle groove, which is used to install the rear axle.

[0011] As a preferred embodiment of the tractor frame of the present invention, wherein: a fuel tank groove is provided on one side of the middle part, and the fuel tank groove is used for the passage of an oil pipeline; A pipe groove is provided on the other side of the middle section, through which the air filter line passes.

[0012] As a preferred embodiment of the tractor frame of the present invention, the rear end is provided with a stress relief block.

[0013] As a preferred embodiment of the tractor frame of the present invention, the left crossbeam and the right crossbeam are provided with a plurality of counterweights.

[0014] As a preferred embodiment of the tractor frame of the present invention, the crossbeam assembly is provided with module plates on both sides, and the module plates are respectively a front module plate, a middle module plate and a rear module plate in the rearward extension direction from the connecting panel.

[0015] The beneficial effects of this tractor frame are: the recessed space formed by the floor plate and crossbeam assembly can accommodate the engine and gearbox, ensuring that the components of the tractor do not exceed the height of the crossbeam assembly after installation, thus achieving the effect of lowering the tractor body and improving the stability and rigidity of the tractor frame.

[0016] Another object of the present invention is to provide a tractor vehicle, the purpose of which is to provide a tractor vehicle with high strength.

[0017] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a tractor unit, including a gearbox, an engine, a drive shaft, and wheels, wherein the frame adopts the tractor unit frame.

[0018] The beneficial effects of this invention are: its sunken space can accommodate the engine and gearbox, so that the components of the tractor vehicle do not exceed the height of the crossbeam assembly after installation, thereby achieving the effect of lowering the tractor vehicle body and improving the stability and rigidity of the tractor vehicle frame. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the tractor frame of the present invention.

[0021] Figure 2 This is a top view of the crossbeam assembly of the tractor frame of the present invention.

[0022] Figure 3 This is a bottom view of the crossbeam assembly of the tractor frame of the present invention.

[0023] Figure 4 The left view shows the crossbeam assembly of the tractor frame of the present invention.

[0024] Figure 5 This is a schematic diagram of the modular panel structure of the tractor frame of the present invention.

[0025] In the diagram: 100, Front platform; 200, Connecting panel; 300, Crossbeam assembly; 301, Left crossbeam; 302, Right crossbeam; 303, Base plate; M, Sunken space; 101, Base; 102, Front bumper; 103, Vertical plate; 304, Front end section; 305, Middle section; 306, Rear end section; 400, Rear side bracket; 304a, Front axle groove; 306a, Rear axle groove; 305a, Fuel tank groove; 305b, Pipe groove; 306b, Stress relief block; 307, Counterweight block; 201, Front panel; 202, Left panel; 203, Right panel; 304a-1, Left front groove; 304 a-2, Right front groove; 304a-11, High top; 304a-12, Low top; 306a-1, Left rear groove; 306a-2, Right rear groove; 306a-11, Left protrusion; 306a-12, Middle protrusion; 306a-13, Right protrusion; 306b-1, Left support block; 306b-2, Right support block; 306b-11, Protruding block; 306b-12, Round hole; 401, Sealing plate; 402, Rear bumper; 403, Protective plate; 500, Module plate; 501, Front module plate; 502, Middle module plate; 503, Rear module plate; 504, Front side plate; 505, Rear side plate. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1, referring to Figures 1-4 The first embodiment of the present invention provides a tractor frame, which includes a front platform 100, a connecting panel 200 and a crossbeam assembly 300. The connecting panel 200 is connected to the front platform 100, and the crossbeam assembly 300 extends rearward from the middle of the connecting panel 200.

[0031] The front-end platform 100 includes a base 101 and a front bumper 102, as well as a vertical plate 103 between the base 101 and the front bumper 102. The base 101 is horizontal at the bottom and raised at the front. The front bumper 102 is installed on the raised end of the base 101. The front bumper 102 has headlight slots on both sides for installing headlights. The height of the front bumper 102 is just enough to install the headlights. The overall height is low and will not affect the driver's vision. The connecting panel 200 is connected to the horizontal end of the base 101. The lower end of the vertical plate 103 is connected to the front bumper 102, the base 101 and the connecting panel 200 in sequence. The vertical plate 103 has a slanted groove that is roughly parallel to the raised end of the base 101. The base 101, the front bumper 102, the connecting panel 200 and the vertical plate 103 are fixed together by welding. The base 101 is used to install the driver's seat for the driver to sit on.

[0032] Furthermore, preferably, two upright plates 103 are provided, and the two upright plates 103 are close to the middle of the base 101. The base 101 is symmetrically arranged along the central axis of the frame length direction, and the upright plates 103 are also symmetrically arranged at both ends of the central axis. Furthermore, the base 101 buffer blocks are symmetrically arranged along the central axis on the base 101.

[0033] Furthermore, the part where the connecting panel 200 connects to the crossbeam assembly 300 is the front panel 201, the connecting panel 200 on the side of the left crossbeam 301 is the left panel 202, and the connecting panel 200 on the side of the right crossbeam 302 is the right panel 203. The widths of the left panel 202 and the right panel 203 are approximately the same, and the left crossbeam 301 and the right crossbeam 302 are integrally formed as a plate. The outer contours of the left crossbeam 301 and the right crossbeam 302 are consistent. The outer contours of the crossbeam assembly 300 are symmetrically arranged with respect to the central axis. The left panel 202 and the right panel 203 are located on the same plane, and a recess is provided between the front panel 201 and the left panel 202 and the right panel 203.

[0034] Furthermore, the crossbeam assembly 300 includes a left crossbeam 301 and a right crossbeam 302. The bottom of the left crossbeam 301 and the right crossbeam 302 is provided with a base plate 303. A sunken space M is formed between the base plate 303 and the left crossbeam 301 and the right crossbeam 302. The sunken space M can accommodate the installation of components such as the engine and the transmission. The bottom height of the base plate 303 does not exceed the bottom of the base 101, ensuring that obstacles passing through the base 101 can pass through the base plate 303. The engine, transmission, and other components are installed in the sunken space M, so that the vehicle height is roughly the same as the height of the crossbeam assembly 300, thereby reducing the overall vehicle height and improving the passability of the tractor.

[0035] The crossbeam assembly 300 is divided into a front end 304, a middle part 305, and a rear end 306 along the length of the frame. The front end 304 of the crossbeam assembly 300 is connected to the connecting panel 200 and divides the connecting panel 200 into a front panel 201, a left panel 202, and a right panel 203. The middle part 305 is connected to the bottom plate 303. The bottom plate 303 and the interior of the middle part 305 form a sunken space M. That is, the left crossbeam 301 and the right crossbeam 302 of the middle part 305 and the bottom plate 303 form a sunken space M. The space between the front end and the rear end 306 is an extension of the sunken space M.

[0036] The middle section 305 is equipped with an engine bracket, a gearbox bracket, an accumulator bracket, an emergency pump bracket, and a filter bracket. The engine bracket is located on the inner wall of the front end of the middle section 305, the gearbox bracket is installed on the inner wall of the middle section 305 behind the engine bracket, and the accumulator bracket, emergency pump bracket, and filter bracket are located on the inner wall of the rear end of the middle section 305. The portion of the accumulator bracket that extends beyond the middle section 305 is located in the rear end section 306. The engine mount and gearbox mount are located in the center of the frame, which evenly distributes the load between the front and rear wheels and realizes the power distribution between the front and rear axles. At the same time, the engine and gearbox are installed in the middle, which shortens the transmission path from the engine to the drive wheels, reduces power loss, improves transmission efficiency, and improves the vehicle's traction and passability. The inner part of the front end 304, the middle part 305 and the rear end 306 is the inner wall between the left crossbeam 301 and the right crossbeam 302, and the outer part of the front end 304, the middle part 305 and the rear end 306 is the outer wall of the left crossbeam 301 and / or the right crossbeam 302.

[0037] The front end 304 is provided with a front axle groove 304a, which includes a left front groove 304a-1 on the left crossbeam 301 and a right front groove 304a-2 on the right crossbeam 302. The rear end 306 is provided with a rear axle groove 306a, wherein the left front groove 304a-1 and the right front groove 304a-2 are respectively for the front axles to pass through. The two front axles are used for installation after passing through the left front groove 304a-1 and the right front groove 304a-2 respectively. The left and right front wheels have a rear axle groove 306a in the rear end 306. The rear axle groove 306a includes a left rear groove 306a-1 on the left crossbeam 301 and a right rear groove 306a-2 on the right crossbeam 302. The left rear groove 306a-1 and the right rear groove 306a-2 are respectively for the rear axle to pass through. The two rear axles are used to install the left and right rear wheels after passing through the left rear groove 306a-1 and the right rear groove 306a-2 respectively.

[0038] The left front groove 304a-1 and the right front groove 304a-2 have the same shape. Taking the left front groove 304a-1 as an example, it is a square through groove opened in the left crossbeam 301. The bottom of the left front groove 304a-1 is open, and its top is stepped, consisting of a high top 304a-11 and a low top 304a-12. The length of the high top 304a-11 is twice the length of the low top. The two ends of the high top 304a-11 are concave 1 / 4 circular arcs, and are respectively connected to the left front groove. The side of 304a-1 is connected to the side of the low roof 304a-12, while the horizontal side of the low roof 304a-12 is connected to the side of the high roof 304a-11. The other end of the low roof 304a-12 is a concave 1 / 4 arc and is connected to the other side of the left front slot 304a-1. The left crossbeam 301 around the left front slot 304a-1 is equipped with support frames for multiple tractor components. The other end of the support frame is located inside the front end 304, which occupies space reasonably and increases the space utilization rate inside the front end 304.

[0039] The left rear groove 306a-1 and the right rear groove 306a-2 have the same shape. Taking the left rear groove 306a-1 as an example, it is a square through groove opened in the left crossbeam 301. The bottom of the left rear groove 306a-1 is open, and the two ends of its top are concave 1 / 4 arcs. In the middle, there are protruding left protrusion 306a-11, middle protrusion 306a-12 and right protrusion 306a-13. The central protrusion 306a-12 is located at the central axis of the left rear groove 306a-1. The left protrusion 306a-11 and the right protrusion 306a-13 are symmetrically arranged about the central protrusion 306a-12. The width of the protrusion 306a-12 is three times the width of the left protrusion 306a-11, and the interval between the central protrusion 306a-12 and the left protrusion 306a-11 is 1.5 times the width of the left protrusion 306a-11.

[0040] Furthermore, the intermediate section 305 is provided with a fuel tank groove 305a and a pipe groove 305b. The fuel tank groove 305a is located on the left crossbeam 301. The tractor fuel tank is installed on the left crossbeam 301 outside the fuel tank groove 305a. The fuel tank pipe can pass through the fuel tank groove 305a to connect to the engine in the sunken space M. The pipe groove 305b is located on the right crossbeam 302. The air filter and exhaust pipe and other components are installed on the right crossbeam 302 outside the pipe. The pipes pass through the pipe groove 305b to connect to the engine in the sunken space M. The difference in weight distribution on both sides of the crossbeam assembly 300 is reduced by adjusting the opening size of the fuel tank groove 305a and the pipe groove 305b, thereby improving the stability of the frame. Multiple pipe grooves 305b can be provided, depending on the position of the air filter, exhaust pipe and other components, so that the pipes can pass directly through the pipe groove 305b into the intermediate section 305.

[0041] Furthermore, the rear end portion 306 is provided with a stress relief block 306b, wherein the top of the front end portion 304 and the middle portion 305 of the left crossbeam 301 and the right crossbeam 302 are horizontal, while the top of the rear end portion 306 of the left crossbeam 301 and the right crossbeam 302 is inclined downward relative to the front end portion 304 of the left crossbeam 301 and the right crossbeam 302; the stress relief block 306b includes a left stress block 306b-1 installed on the left crossbeam 301 and a right stress block 306b-2 installed on the right crossbeam 302, and the left stress block 306b-1 and the right stress block 306b-2 are installed on the two inclined surfaces of the rear end portion 306.

[0042] The left support block 306b-1 and the right support block 306b-2 have the same shape and position. Here, we will describe the left support block 306b-1 in detail. The left support block 306b-1 is installed in the middle of the top surface of the rear end 306 of the left crossbeam 301. The left support block 306b-1 is a protruding block 306b-11 set on the top surface of the rear end 306 of the left crossbeam 301. The top of the protruding block 306b-11 is arc-shaped, and the two ends of the protruding block 306b-11 smoothly transition with the top surface of the rear end 306 of the left crossbeam 301. The middle part of the protruding block 306b-11 is provided with a circular hole 306b-12. It adopts a large arc transition to eliminate the stress effect.

[0043] Furthermore, multiple counterweights 307 are provided on the left crossbeam 301 and the right crossbeam 302. Counterweights 307 are installed on both sides of the front end of the middle part 305 of the crossbeam assembly 300, and counterweights 307 are installed at the rear end 306 of the crossbeam assembly 300. The installation position and weight of the counterweights 307 are not specific. They are reasonably set according to the specific weight distribution of the frame. Their main function is to adjust the stability and prevent rollover, increase the load-bearing capacity of the frame, and lower the center of gravity of the tractor and increase the traction force of the tractor by reasonably adjusting the distribution position.

[0044] Furthermore, the rear end 306 is connected to a rear support 400, which includes a sealing plate 401 and a rear bumper 402. The sealing plate 401 is connected to the end of the crossbeam assembly 300. The sealing plate 401 has a groove in the middle and notches at both ends of the groove. The ends of the left crossbeam 301 and the right crossbeam 302 are provided with locking blocks, which are respectively locked in the two notches. The rear bumper 402 is installed at the bottom of the sealing plate 401, and the rear bumper 402 has two taillight slots for installing taillights. The two ends of the rear bumper 402 taper inward and the top protrudes. The two ends of the protruding top taper inward. The surface of the rear bumper 402 is also provided with a guard plate 403, which is locked in the front and sides of the rear bumper 402.

[0045] In this embodiment, the crossbeam assembly 300 is made of a plate structure, and a base plate 303 is installed at the bottom of both. The recessed space M formed by the base plate 303 and the crossbeam assembly 300 can accommodate the engine and gearbox, so that the components of the tractor vehicle do not exceed the height of the crossbeam assembly 300 after installation, achieving the effect of lowering the body of the tractor vehicle and improving the stability of the tractor vehicle. Furthermore, the plate-shaped crossbeam assembly 300 can further improve strength and increase turning rigidity, while eliminating unnecessary reinforcing ribs and support structures to reduce redundant materials and weight.

[0046] Example 2, refer to Figure 5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that module plates 500 are installed on both outer walls of the crossbeam assembly 300. The outer walls of the crossbeam assembly 300 from the front platform 100 toward the rear support 400 are respectively a front module plate 501, a middle module plate 502 and a rear module plate 503. The front module plate 501 and the rear module plate 503 have roughly the same shape and are inverted U-shaped. The middle module plate 502 is U-shaped. The width of the middle module plate 502 is smaller than the width of the front module plate 501 and the rear module plate 503.

[0047] One side of the front module plate 501 is shared with the connecting panel 200, and one side of the rear module plate 503 is shared with the sealing plate 401. When processing the front module plate 501 and the rear module plate 503, only the non-common parts need to be processed, and they can be welded together during installation. The front module plate 501 is located outside the front axle groove 304a, and the interior of the front module plate 501 is used to install the front wheel. The rear module plate 503 is located outside the rear axle groove 306a, and the interior of the front module plate 501 is used to install the rear wheel. The front module plate 501 and the rear module plate 503 have roughly the same shape. Here, we will describe the front module plate 501 in detail. The front module plate 501 is vertical on both sides and horizontal at the top. The connection between the top and the side is inclined. The middle module plate 502 on the left crossbeam 301 is located outside the oil tank groove 305a. The middle module plate 502 on the left crossbeam 301 has an oil tank bracket for installing the oil tank installed inside. The middle module plate 502 on the right crossbeam 302 is located outside the pipe groove 305b. The middle module plate 502 on the right crossbeam 302 has an air filter bracket and an exhaust pipe bracket installed inside to install the air filter and exhaust pipe.

[0048] Furthermore, a front side plate 504 and a rear side plate 505 are installed on the sides of the front module plate 501, the middle module plate 502 and the rear module plate 503, wherein the front side plate 504 covers all the sides of the front module plate 501 and the left side of the middle module plate 502, and the rear side plate 505 includes the right side of the middle module plate 502 and all the sides of the rear module plate 503.

[0049] Among them, the modular panels 500 are all manufactured separately. The reasonable installation layout of the internal parts of the tractor is achieved by the installation and cooperation of multiple modular panels 500. At the same time, the modular design means that each module has a specific function and structure, which can reduce the number of parts and connection points, reduce the generation of welding seams, and improve the overall rigidity and stability of the frame.

[0050] The remaining structure is the same as that in Example 1.

[0051] Example 3, referring to Figures 1-5 The third embodiment of the present invention provides a tractor vehicle, which includes the entire structure of the tractor vehicle frame, as well as a gearbox, engine, drive shaft and tires. The whole assembly forms a complete tractor vehicle, which has the advantages of low body and good stability, and the overall rigidity and strength are effectively improved.

[0052] The remaining structure is the same as that in Example 2.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tractor frame, characterized in that: include, Front-end platform (100) for mounting the driver's seat; A connection panel (200) is connected to the end of the front-end platform (100); and, The crossbeam assembly (300) extends rearward from the center of the connecting panel (200); The beam assembly (300) includes a left beam (301) and a right beam (302), and a base plate (303) at the bottom of the left beam (301) and the right beam (302), forming a sunken space (M) between the base plate (303) and the left beam (301) and the right beam (302). The sunken space (M) is used to install tractor components; The front platform (100) includes a base (101) and a front bumper (102), wherein the base (101) is horizontal at the bottom and raised at the front. The part where the connecting panel (200) connects to the crossbeam assembly (300) is the front panel (201), the connecting panel (200) on the side of the left crossbeam (301) is the left panel (202), the connecting panel (200) on the side of the right crossbeam (302) is the right panel (203), and a recess is provided between the front panel (201) and the left panel (202) and the right panel (203); The crossbeam assembly (300) includes a front end (304), a middle part (305) and a rear end (306); the front end (304) is connected to the connecting panel (200); the middle part (305) is connected to the base plate (303); and the rear end (306) is connected to a rear side bracket (400). An engine mount and a gearbox mount are installed on the inner wall of the middle part (305). The engine mount and gearbox mount are designed to be located at the center of the frame to evenly distribute the load on the front and rear wheels and realize the power distribution between the front and rear axles. One side of the middle part (305) is provided with an oil tank groove (305a) for oil pipelines to pass through, and the other side of the middle part (305) is provided with a pipe groove (305b) for air filter lines to pass through; the difference in counterweight between the two sides of the crossbeam assembly (300) is reduced by adjusting the opening size of the oil tank groove (305a) and the pipe groove (305b) to improve the stability of the frame; The rear end (306) is provided with a stress relief block (306b); The stress relief block (306b) includes a left stress block (306b-1) mounted on the left crossbeam (301) and a right stress block (306b-2) mounted on the right crossbeam (302). The left stress block (306b-1) and the right stress block (306b-2) are mounted on two inclined surfaces of the rear end (306). The left stress block (306b-1) and the right stress block (306b-2) have the same shape and position. The left support block (306b-1) is a protrusion (306b-11) provided on the top surface of the rear end (306) of the left crossbeam (301), and the top of the protrusion (306b-11) is arc-shaped, while the two ends of the protrusion (306b-11) smoothly transition to the top surface of the rear end (306) of the left crossbeam (301), and a circular hole (306b-12) is provided in the middle of the protrusion (306b-11).

2. The tractor frame according to claim 1, characterized in that: The front-end platform (100) includes a base (101), a front bumper (102), and a vertical plate (103), wherein, The connecting panel (200) is connected to one end of the base (101); The front bumper (102) is mounted on the other end of the base (101); The upright plate (103) is disposed between the base (101) and the front bumper (102).

3. The tractor frame according to claim 1 or 2, characterized in that: The bottom height of the base plate (303) does not exceed the bottom of the front-end platform (100).

4. The tractor frame according to claim 3, characterized in that: The left crossbeam (301) and the right crossbeam (302) are integrally formed in a plate shape, and the outer contours of the left crossbeam (301) and the right crossbeam (302) are consistent.

5. The tractor frame according to claim 1, characterized in that: The front end portion (304) is provided with a front axle groove (304a), which is used to install the front axle; The rear end (306) is provided with a rear axle groove (306a), which is used to install the rear axle.

6. The tractor frame according to claim 1, characterized in that: An oil tank groove (305a) is provided on one side of the middle part (305), and the oil tank groove (305a) is used for the passage of oil pipelines; The other side of the middle part (305) is provided with a pipe groove (305b) for the air filter line to pass through.

7. The tractor frame according to any one of claims 1, 2, 4-6, characterized in that: Multiple counterweights (307) are provided on the left crossbeam (301) and the right crossbeam (302).

8. The tractor frame according to any one of claims 1, 2, 4-6, characterized in that: The beam assembly (300) has module plates (500) on both sides, and the module plates (500) extending backward from the connecting panel (200) are respectively the front module plate (501), the middle module plate (502) and the rear module plate (503).

9. A tractor unit, employing a tractor unit frame as described in any one of claims 1-8, characterized in that: This includes the gearbox, engine, drive shaft, and wheels.

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